injector problems???

[BMailloux]

My check engine light just started to come on, and my 2003 Dodge runs like a gas motor with spark plug problems. misses and runs rough, one of my injector lines when the truck is running feels jumpy, this truck has always had an idle that seems to run fast. I got a code of P0336 to come up, any ideas on what is going on with my truck, it has 103,000 miles on it.

 

[p-Bar]

Symptoms Symptoms of a P0336 DTC may include: Intermittent stalling & no start No start MIL (Malfunction Indicator Lamp) illumination Intermittent misfire Causes Potential causes of a P0336 code include: Bad crank sensor Broken reluctor ring (missing teeth, debris lodged in ring) Reluctor ring dislodged/stripped from it's stationary location Wiring harness chafing causing short Wiring open in CKP circuit Possible Solutions Crankshaft sensor problems are at times intermittent and the vehicle may start and run for some time until problem occurs. Try to reproduce the complaint. When engine stalls or if the engine will not start and continue to run, then crank engine while observing RPM reading. If there is no RPM reading, check for a signal coming out of the crank sensor. Using a scope is best, but since most DIYers don't have access to one you may be able to use a code reader or the tachometer to check for RPM signal. Visually check the CKP harness for damage or cracking in the wiring insulation. Repair as necessary. Make sure the wiring isn't mis-routed near high voltage spark plug wires. Check for loose connection or broken lock at the sensor connector. Repair as necessary. Obtain a resistance spec for the Crank sensor. Remove and check it. If it doesn't pass, replace it. If it checks out okay, check the reluctor ring for damage, broken teeth, or debris lodged in the ring. Make sure the reluctor ring isn't dislodged. It should be stationary on the crankshaft. Carefully repair/replace as necessary. Note: some reluctor rings are located in the bell housing of the transmission or behind the front engine cover and cannot be easily accessed. If the vehicle intermittently stalls and after stalling you have no RPM signal and you have verified the wiring to the CKP sensor is good, then try replacing the sensor. If that doesn't take care of it, and you can't access the reluctor ring, seek help from an automotive professional.

I would bet on the crank sensor being bad

 

[BMailloux]

Symptoms Symptoms of a P0336 DTC may include: Intermittent stalling & no start No start MIL (Malfunction Indicator Lamp) illumination Intermittent misfire Causes Potential causes of a P0336 code include: Bad crank sensor Broken reluctor ring (missing teeth, debris lodged in ring) Reluctor ring dislodged/stripped from it's stationary location Wiring harness chafing causing short Wiring open in CKP circuit Possible Solutions Crankshaft sensor problems are at times intermittent and the vehicle may start and run for some time until problem occurs. Try to reproduce the complaint. When engine stalls or if the engine will not start and continue to run, then crank engine while observing RPM reading. If there is no RPM reading, check for a signal coming out of the crank sensor. Using a scope is best, but since most DIYers don't have access to one you may be able to use a code reader or the tachometer to check for RPM signal. Visually check the CKP harness for damage or cracking in the wiring insulation. Repair as necessary. Make sure the wiring isn't mis-routed near high voltage spark plug wires. Check for loose connection or broken lock at the sensor connector. Repair as necessary. Obtain a resistance spec for the Crank sensor. Remove and check it. If it doesn't pass, replace it. If it checks out okay, check the reluctor ring for damage, broken teeth, or debris lodged in the ring. Make sure the reluctor ring isn't dislodged. It should be stationary on the crankshaft. Carefully repair/replace as necessary. Note: some reluctor rings are located in the bell housing of the transmission or behind the front engine cover and cannot be easily accessed. If the vehicle intermittently stalls and after stalling you have no RPM signal and you have verified the wiring to the CKP sensor is good, then try replacing the sensor. If that doesn't take care of it, and you can't access the reluctor ring, seek help from an automotive professional.

I would bet on the crank sensor being bad

Thanks for the help, we removed the sensor, will it run without it in place?

 

[p-Bar]

A lot of sensors when bad will will let the engine run as the ECM will default to last known good program. Keep us updated