-
TDR Magazine subscribers receive more than the magazine! You also gain additional forum privileges!
Details here: TDR Privileges
Subscribe to TDR Magazine here: https://www.tdr-online.com/
P0193 wont start and rough idle "update" HELP
- Thread starter ryecreek
- Start Date
Attention: TDR Forum Junkies To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.
Thanks, TDR Staff
- Status
twest thanks i may be taking you up and ggreed what you said i just removed to rear eng lift eye (for access) and washed everything good i do have a diesel leak dripping off bellhousing i'm gonna:
wait for it to dry
try to start(won't right now) and check for obvious leaks
remove rail and lines
check for loose connector tube retainer of none loosen and retourque them all
assemble and retry
would a return leak (fitting@ back of head) cause a no start in wouldn't think so but i've been wrong this far
wait for it to dry
try to start(won't right now) and check for obvious leaks
remove rail and lines
check for loose connector tube retainer of none loosen and retourque them all
assemble and retry
would a return leak (fitting@ back of head) cause a no start in wouldn't think so but i've been wrong this far
I had worked on a truck that had a long crank time but ran fine once fired... had a leak from the return line at the back of the head. Removed the line and found a crack in it. When I took the line of, I could tell it had been bound up when installed. I put a new line on it, but loosened the mounting bolts on the rail so it would move a little bit to get the line on without any tension. When I loosened the bolts, the rail moved a hair. I'd suggest loosening the rail bolts to relieve any tension on your lines if you will be removing any of them. I'm guessing this could be a cause of injector line cracking as well...
This may be an issue with your truck, but this truck I fixed never failed to start, just a long crank. Good luck
This may be an issue with your truck, but this truck I fixed never failed to start, just a long crank. Good luck
Last edited:
SECTION D - ENGINE WILL NOT START / HARD TO START:
Possible Causes
Battery voltage
Starting Accessories
Fuel Supply (Low Pressure) System
Fuel Injection (High Pressure) System
Fuel Return
Air Intake System
Other Vehicle Systems
Base Engine
14-003-06 REV. A -8-
Perform the Pre-Diagnostic Troubleshooting Procedure before proceeding.
1. DTC / Product Improvement: Check for any service bulletins related to the
customer's concern or Diagnostic Trouble Codes (DTC's) present. Follow appropriate
guidelines in the diagnostic procedures outlined in TechCONNECT. Is the vehicle
repaired?
a. Yes >> Go to Step #17.
b. No >> Go to Step #2.
2. Verify Battery Voltage: Measure the battery voltage and load capability. Is the
battery voltage sufficient?
a. Yes >> Go to Step #3.
b. No >> Repair low battery voltage condition. Go to Step #17.
3. Verify Starting Accessories: Verify the ignition switch, vehicle theft system, starter,
intake manifold grid heater, and fuel heater are functioning properly. Are all starting
accessories functioning properly?
a. Yes >> Go to Step #4.
b. No >> Repair or replace accessories as necessary >> Go to Step #17.
4. Check the supply fuel in the vehicle: Verify fuel level in the fuel tank. Also verify fuel
quality. Remove, inspect and replace the fuel filter (if necessary). Investigate for
evidence of fuel contamination and improper fuel type. Refer to the vehicle owners
manual fuel requirements section. Is the fuel quality within specification?
a. Yes >> Go to Step #5.
b. No >> Follow fuel contamination process (drain contaminated fuel, replace
damaged components, fill with proper fuel). >> Go to Step #17.
5. Verify complaint: Using the appropriate scan tool log the fuel pressure set point and
actual fuel pressure. Verify the rail pressure versus set point, this can be done while
cranking or with the engine idling. A good system will have actual fuel pressure that is
+/- 500 PSI from the set pressure. (Example: If the fuel pressure set point at idle is
6500 PSI, the actual fuel pressure on a good system is expected to be between 6000 -
7000 PSI). Does the actual fuel rail pressure meet the set fuel pressure +/- 500
PSI?
a. Yes >> Go to Step #6.
b. No >> Go to Step #9.
6. Check the engine oil level: Check the engine oil level. Is the engine oil level over
filled?
a. Yes >> Go to Step #7.
b. No >> Go to Step #8.
7. Remove the engine valve cover: Inspect for injectors leaking fuel into the valve train
area while cranking the engine. If the engine will start and idle, actuate the Fuel
Pressure Override Test on the appropriate scan tool NOTE: This feature is not
available on 2003 MY vehicles. Use the fuel manifold blocking tool, Miller special tool
#9011, to isolate suspected leaking injectors. If the leak is still present with the
suspected injector isolated, remove the injector and inspect the O-ring on the body of
the injector for cuts or damage. Inspect the injector bore for burrs or other cause for a
cut O-ring. Correct the cause of the damaged O-ring and replace the O-ring. Use
copper sealing gasket when reinstalling the injector. Refer to the detailed removal and
installation procedures available in TechCONNECT under: Service Info tab > 14 - Fuel
System > Fuel Injection > Fuel Injector. Are there any leaking injectors?
a. Yes >> Replace the leaky injector(s). Refer to the detailed removal and installation
procedures available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector. >> Go to Step #17.
b. No >> Determine the source of fuel/coolant/other substance in the crankcase
causing the system to be over full. Repair as necessary. >> Go to Step #17.
-9- 14-003-06 REV. A
8. Check the fuel pressure limiting valve: Perform the “Checking Pressure Limiting
Valve On The Fuel Rail For Internal Leaks” test. Perform the existing diagnostic
procedure available in TechCONNECT under: Service Info tab > 9 - Engine >
Diagnosis and Testing. No leakage is expected while cranking or while at idle speed.
Does the pressure limiting valve leak internally?
a. Yes >> Replace the fuel pressure limiting valve. - Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Delivery > Fuel Pressure Regulator. >> Go to Step #17.
b. No >> Go to Step #9.
9. Test for high injector return flow: Refer to the detailed diagnostic information
available in TechCONNECT under: Service Info tab > 9 - Engine, Diagnosis and
Testing > Injector Return Flow Test. Do the injectors pass the “Injector Return
Flow Test”?
a. Yes >> Go to Step #11.
b. No >> Go to Step #10.
NOTE: Torque all High Pressure Connector (HPC) nuts to the correct torque and
retest. Refer to the detailed service information available in TechCONNECT
under: Service Info tab > 14 - Fuel System > Fuel Injection > Fuel Injector.
NOTE: Test should be repeated to confirm measurements.
10. If the injector return from any cylinder(s) is deemed excessive:
a. Check HPC tip for damage, replace HPC if damaged. Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector > Removal/Installation. >> Go to Step #17.
b. If HPC tip is undamaged, replace the injector and HPC. Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector > Removal/Installation. >> Verify that a quality fuel
filter is used. >> Go to Step #17.
11. Verify proper low pressure fuel supply to the high pressure pump: Perform the
appropriate fuel supply system flow test. NOTE: This procedure can be slightly
different depending on if the vehicle has an engine-mounted transfer pump or
the in-tank transfer pump. In a good low pressure fuel system, fuel flow of 560 mL in
10 seconds or better is expected for model year 2003 and early 2004 vehicles. In a
good low pressure fuel system, fuel flow of 590 mL in 10 seconds or better is expected
for model year late 2004 through 2007 vehicles. Be sure there is no air in the system.
Is the low pressure fuel supply volume sufficient?
a. Yes >> Go to Step #12.
b. No >> Repair the low pressure fuel supply system. Vehicles equipped with an in
tank fuel pump: Refer to the detailed diagnostic information available in
TechCONNECT under: Service Info tab > 9 - Engine > Diagnosis & Testing >
In-Tank Fuel Lift Pump Flow/Diagnostic Test Procedure. Vehicles equipped with
an engine mounted fuel transfer pump: Refer to the detailed diagnostic
information available in TechCONNECT under: Service Info tab > Diagnostics tab,
Powertrain Gas, Driveability Diesel, Fuel Lift Pump Flow And Inlet Restriction Test
>> Go to Step #17.
14-003-06 REV. A -10-
12. Verify high pressure pump output volume: Remove the high pressure fuel line from
the high pressure pump outlet port to the fuel rail. Connect a suitable hose to the high
pressure outlet port of the high pressure pump and route it to a graduated container.
Disconnect the Electronic Fuel Control Actuator. Crank the engine until fuel exits the
hose. NOTE: With the discharge line routed to atmosphere, fuel will discharge at
0 PSI. Crank the engine for three 10 second intervals, pausing to allow the starter to
cool between each crank event. High pressure pump output volume must be greater
than 70 mL in 30 seconds. Is the high pressure pump output flow sufficient?
a. Yes >> Go to Step #13.
b. No >> Replace the high pressure pump. Refer to the detailed service information
available in TechCONNECT under: Service Info tab > 14 - Fuel System > Fuel
Injection > Fuel Injection Pump. >> Go to Step #17.
13. Fuel Return: Check for kinked or restricted fuel return lines. Check the fuel tank
venting. Where any problems found in the Fuel Return system?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #14.
14. Intake/Exhaust Systems: Check for inlet restriction, inspect air filter for excessive
dirt/debris. Verify air intake tubes and hoses are not kinked or restricted. Check for
charge air cooler air system leaks. Perform the “INTAKE AIR SYSTEM PRESSURE
TEST - DIESEL”. Refer to the detailed service information available in TechCONNECT
under: Service Info tab > 11 - Exhaust System > Turbocharger System > Turbocharger
> Inspection. Inspect the Turbocharger for excessive compressor wheel movement
and proper waste gate operation. Check for exhaust restriction. Check for kinked or
blocked exhaust pipes. Verify proper exhaust brake operation (if equipped). Were any
issues found with the Intake/Exhaust Systems?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #15.
15. Other Vehicle Systems: Verify proper operation of the Transmission Clutch. Verify
proper operation of the Transmission. Verify proper operation of the Vehicle brakes
(check for dragging). Verify proper operation of the Cooling fan operation cycle time.
Verify proper operation of the Engine driven accessories. Were any issues found
with the Other Vehicle Systems?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #16.
16. Base Engine: Check for internal engine damage. Valve lash settings, engine
compression, cylinder leak down, etc. Were any issues found with the Base
Engine?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #17.
17. Repair Complete: Perform Powertrain Verification Test VER - 1 (Diesel). Refer to the
detailed service information available in TechCONNECT under: Service Info tab > 8 -
Electrical/Electronic Control Modules/Engine Control Module > Diagnosis And Testing.
Possible Causes
Battery voltage
Starting Accessories
Fuel Supply (Low Pressure) System
Fuel Injection (High Pressure) System
Fuel Return
Air Intake System
Other Vehicle Systems
Base Engine
14-003-06 REV. A -8-
Perform the Pre-Diagnostic Troubleshooting Procedure before proceeding.
1. DTC / Product Improvement: Check for any service bulletins related to the
customer's concern or Diagnostic Trouble Codes (DTC's) present. Follow appropriate
guidelines in the diagnostic procedures outlined in TechCONNECT. Is the vehicle
repaired?
a. Yes >> Go to Step #17.
b. No >> Go to Step #2.
2. Verify Battery Voltage: Measure the battery voltage and load capability. Is the
battery voltage sufficient?
a. Yes >> Go to Step #3.
b. No >> Repair low battery voltage condition. Go to Step #17.
3. Verify Starting Accessories: Verify the ignition switch, vehicle theft system, starter,
intake manifold grid heater, and fuel heater are functioning properly. Are all starting
accessories functioning properly?
a. Yes >> Go to Step #4.
b. No >> Repair or replace accessories as necessary >> Go to Step #17.
4. Check the supply fuel in the vehicle: Verify fuel level in the fuel tank. Also verify fuel
quality. Remove, inspect and replace the fuel filter (if necessary). Investigate for
evidence of fuel contamination and improper fuel type. Refer to the vehicle owners
manual fuel requirements section. Is the fuel quality within specification?
a. Yes >> Go to Step #5.
b. No >> Follow fuel contamination process (drain contaminated fuel, replace
damaged components, fill with proper fuel). >> Go to Step #17.
5. Verify complaint: Using the appropriate scan tool log the fuel pressure set point and
actual fuel pressure. Verify the rail pressure versus set point, this can be done while
cranking or with the engine idling. A good system will have actual fuel pressure that is
+/- 500 PSI from the set pressure. (Example: If the fuel pressure set point at idle is
6500 PSI, the actual fuel pressure on a good system is expected to be between 6000 -
7000 PSI). Does the actual fuel rail pressure meet the set fuel pressure +/- 500
PSI?
a. Yes >> Go to Step #6.
b. No >> Go to Step #9.
6. Check the engine oil level: Check the engine oil level. Is the engine oil level over
filled?
a. Yes >> Go to Step #7.
b. No >> Go to Step #8.
7. Remove the engine valve cover: Inspect for injectors leaking fuel into the valve train
area while cranking the engine. If the engine will start and idle, actuate the Fuel
Pressure Override Test on the appropriate scan tool NOTE: This feature is not
available on 2003 MY vehicles. Use the fuel manifold blocking tool, Miller special tool
#9011, to isolate suspected leaking injectors. If the leak is still present with the
suspected injector isolated, remove the injector and inspect the O-ring on the body of
the injector for cuts or damage. Inspect the injector bore for burrs or other cause for a
cut O-ring. Correct the cause of the damaged O-ring and replace the O-ring. Use
copper sealing gasket when reinstalling the injector. Refer to the detailed removal and
installation procedures available in TechCONNECT under: Service Info tab > 14 - Fuel
System > Fuel Injection > Fuel Injector. Are there any leaking injectors?
a. Yes >> Replace the leaky injector(s). Refer to the detailed removal and installation
procedures available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector. >> Go to Step #17.
b. No >> Determine the source of fuel/coolant/other substance in the crankcase
causing the system to be over full. Repair as necessary. >> Go to Step #17.
-9- 14-003-06 REV. A
8. Check the fuel pressure limiting valve: Perform the “Checking Pressure Limiting
Valve On The Fuel Rail For Internal Leaks” test. Perform the existing diagnostic
procedure available in TechCONNECT under: Service Info tab > 9 - Engine >
Diagnosis and Testing. No leakage is expected while cranking or while at idle speed.
Does the pressure limiting valve leak internally?
a. Yes >> Replace the fuel pressure limiting valve. - Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Delivery > Fuel Pressure Regulator. >> Go to Step #17.
b. No >> Go to Step #9.
9. Test for high injector return flow: Refer to the detailed diagnostic information
available in TechCONNECT under: Service Info tab > 9 - Engine, Diagnosis and
Testing > Injector Return Flow Test. Do the injectors pass the “Injector Return
Flow Test”?
a. Yes >> Go to Step #11.
b. No >> Go to Step #10.
NOTE: Torque all High Pressure Connector (HPC) nuts to the correct torque and
retest. Refer to the detailed service information available in TechCONNECT
under: Service Info tab > 14 - Fuel System > Fuel Injection > Fuel Injector.
NOTE: Test should be repeated to confirm measurements.
10. If the injector return from any cylinder(s) is deemed excessive:
a. Check HPC tip for damage, replace HPC if damaged. Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector > Removal/Installation. >> Go to Step #17.
b. If HPC tip is undamaged, replace the injector and HPC. Refer to the detailed service
information available in TechCONNECT under: Service Info tab > 14 - Fuel System
> Fuel Injection > Fuel Injector > Removal/Installation. >> Verify that a quality fuel
filter is used. >> Go to Step #17.
11. Verify proper low pressure fuel supply to the high pressure pump: Perform the
appropriate fuel supply system flow test. NOTE: This procedure can be slightly
different depending on if the vehicle has an engine-mounted transfer pump or
the in-tank transfer pump. In a good low pressure fuel system, fuel flow of 560 mL in
10 seconds or better is expected for model year 2003 and early 2004 vehicles. In a
good low pressure fuel system, fuel flow of 590 mL in 10 seconds or better is expected
for model year late 2004 through 2007 vehicles. Be sure there is no air in the system.
Is the low pressure fuel supply volume sufficient?
a. Yes >> Go to Step #12.
b. No >> Repair the low pressure fuel supply system. Vehicles equipped with an in
tank fuel pump: Refer to the detailed diagnostic information available in
TechCONNECT under: Service Info tab > 9 - Engine > Diagnosis & Testing >
In-Tank Fuel Lift Pump Flow/Diagnostic Test Procedure. Vehicles equipped with
an engine mounted fuel transfer pump: Refer to the detailed diagnostic
information available in TechCONNECT under: Service Info tab > Diagnostics tab,
Powertrain Gas, Driveability Diesel, Fuel Lift Pump Flow And Inlet Restriction Test
>> Go to Step #17.
14-003-06 REV. A -10-
12. Verify high pressure pump output volume: Remove the high pressure fuel line from
the high pressure pump outlet port to the fuel rail. Connect a suitable hose to the high
pressure outlet port of the high pressure pump and route it to a graduated container.
Disconnect the Electronic Fuel Control Actuator. Crank the engine until fuel exits the
hose. NOTE: With the discharge line routed to atmosphere, fuel will discharge at
0 PSI. Crank the engine for three 10 second intervals, pausing to allow the starter to
cool between each crank event. High pressure pump output volume must be greater
than 70 mL in 30 seconds. Is the high pressure pump output flow sufficient?
a. Yes >> Go to Step #13.
b. No >> Replace the high pressure pump. Refer to the detailed service information
available in TechCONNECT under: Service Info tab > 14 - Fuel System > Fuel
Injection > Fuel Injection Pump. >> Go to Step #17.
13. Fuel Return: Check for kinked or restricted fuel return lines. Check the fuel tank
venting. Where any problems found in the Fuel Return system?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #14.
14. Intake/Exhaust Systems: Check for inlet restriction, inspect air filter for excessive
dirt/debris. Verify air intake tubes and hoses are not kinked or restricted. Check for
charge air cooler air system leaks. Perform the “INTAKE AIR SYSTEM PRESSURE
TEST - DIESEL”. Refer to the detailed service information available in TechCONNECT
under: Service Info tab > 11 - Exhaust System > Turbocharger System > Turbocharger
> Inspection. Inspect the Turbocharger for excessive compressor wheel movement
and proper waste gate operation. Check for exhaust restriction. Check for kinked or
blocked exhaust pipes. Verify proper exhaust brake operation (if equipped). Were any
issues found with the Intake/Exhaust Systems?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #15.
15. Other Vehicle Systems: Verify proper operation of the Transmission Clutch. Verify
proper operation of the Transmission. Verify proper operation of the Vehicle brakes
(check for dragging). Verify proper operation of the Cooling fan operation cycle time.
Verify proper operation of the Engine driven accessories. Were any issues found
with the Other Vehicle Systems?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #16.
16. Base Engine: Check for internal engine damage. Valve lash settings, engine
compression, cylinder leak down, etc. Were any issues found with the Base
Engine?
a. Yes >> Repair as necessary. >> Go to Step #17.
b. No >> Go to Step #17.
17. Repair Complete: Perform Powertrain Verification Test VER - 1 (Diesel). Refer to the
detailed service information available in TechCONNECT under: Service Info tab > 8 -
Electrical/Electronic Control Modules/Engine Control Module > Diagnosis And Testing.
Kwilkinson ya hit the nail on the head that is what i just found!!!
mopartech thank very much
i just did the following with a no start:
checked for leaks cranking (NONE)
pulled rail assembly inspected no prob
removed connector tubes re o-ringed, cleaned mounting points (flanges) w/1500 grit cleaned them well
reinstalled and tourqued everything per spec
truck started after lonnnnngggg crank (1-15sec. 1 20+sec. ) checked for leak none except for return line @back of head leaking like a siv. feels like a banjo but ya cant see it so the ???
it this the issue?
what is the fitting to repair the leak banjo ect.
thanks again maopartech
mopartech thank very much
i just did the following with a no start:
checked for leaks cranking (NONE)
pulled rail assembly inspected no prob
removed connector tubes re o-ringed, cleaned mounting points (flanges) w/1500 grit cleaned them well
reinstalled and tourqued everything per spec
truck started after lonnnnngggg crank (1-15sec. 1 20+sec. ) checked for leak none except for return line @back of head leaking like a siv. feels like a banjo but ya cant see it so the ???
it this the issue?
what is the fitting to repair the leak banjo ect.
thanks again maopartech
Last edited:
fixed return leak went through all connectors re-oring while they were out truck started hard drove 100mi barely got it refired drove 1/2 mile then miss spit/sputter almost died cel on barely idled made it home parked in the shop pulled codes and the p0193 is back truck won't start unpulgged ez cleared codes and still won't start.
the only guess i have left is ez cracked an injector or injector(s) failed try to cap relief again here in a minute to narrow that out
BTW TWest i took you up and left you a mess.
the only guess i have left is ez cracked an injector or injector(s) failed try to cap relief again here in a minute to narrow that out
BTW TWest i took you up and left you a mess.
pulled the injectors and taking them to the valley in am have a guy i know i know gonna test them and he has replacements for any that are bad
what i think is one is blowing return cause i notices (after pulling injectors) a huge puddle of diesel after a little check the return a rear of head is the leaker after just resealing banjo. gonna get a new banjo and seals too just in case cheap insurance
my guess i an injector is really blasting through the return that is alot of pressure or maybe the line is plugged but ill do inj. first since they are out
TWest thanks again if ya think i'm going wrong let me know little to call ya now thanks
what i think is one is blowing return cause i notices (after pulling injectors) a huge puddle of diesel after a little check the return a rear of head is the leaker after just resealing banjo. gonna get a new banjo and seals too just in case cheap insurance
my guess i an injector is really blasting through the return that is alot of pressure or maybe the line is plugged but ill do inj. first since they are out
TWest thanks again if ya think i'm going wrong let me know little to call ya now thanks
well here is the end to this thread
took my injector in and what do ya know they are all bad 3 are toast won't make psi at all other 3 are leaking down can;t afford all 6 so do the 3 $1000 works now. started fine no leaks guess i just didn't want to join the injector club, know wonder the return was blowing fuel ya should have seen the 3 bad inj. blow fuel out the return when they were blasting fuel out other 3 leaked down slow he said it's a matter of time for them
thanks to everybody for all the help this is DONE just need another $1000 for 3 more
took my injector in and what do ya know they are all bad 3 are toast won't make psi at all other 3 are leaking down can;t afford all 6 so do the 3 $1000 works now. started fine no leaks guess i just didn't want to join the injector club, know wonder the return was blowing fuel ya should have seen the 3 bad inj. blow fuel out the return when they were blasting fuel out other 3 leaked down slow he said it's a matter of time for them
thanks to everybody for all the help this is DONE just need another $1000 for 3 more
wow are those stock injectors? you can get a six pack from the dealer for around 800 bucks
I believe you are thinking of 2nd gen injectors. I think new 3rd gen injectors are running about $600 each retail from the dealer!
Gary
no I have ordered many sets when I was working at the dealership there is a six pack for like 800 bucks, all reman. they were expensive when they first came out but now that they have a bunch of remans the price has dropped
Okay, I didn't realize the dealer offered remans - thought you were talking NEW injectors.
Gary
I'm getting the same P0193 code along with the bad miss, especially under any type of load - even free-revving.
This all started after I changed my clutch today. I'm thinking that I might have pulled some wires inadvertently.
I followed the procedure that mopartech posted and so far it basically fails every test.
In your diagnostic experience where is the best place to look for faulty or shorted connections? At the ECM C1 connector? The rail harness connector has all the wires in place.
Also getting P0541 code - intake air heater. I notice the 5 volt supply for the #1 intake air heater and for the fuel rail pressure sensor come from the same splice S173.
This all started after I changed my clutch today. I'm thinking that I might have pulled some wires inadvertently.
I followed the procedure that mopartech posted and so far it basically fails every test.
In your diagnostic experience where is the best place to look for faulty or shorted connections? At the ECM C1 connector? The rail harness connector has all the wires in place.
Also getting P0541 code - intake air heater. I notice the 5 volt supply for the #1 intake air heater and for the fuel rail pressure sensor come from the same splice S173.
- Status
Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
Advertising
Turbo Diesel Register
Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
Advertising
