Archived Need Help Fast

[HighRanger]

Ok, heres the deal, I have an 04 3500 Dually, I had a fass install that went totally wrong and now the truck is in terrible shape and i am out over 5 k so far. Huffines Dodge in lewisville tx has had the truck for two weeks now and can't seem to ge tto the bottom of the problem. I have already paid them over 2k and they still havent fixed it. Problem is at cold start the fuel rail pressure is skyrocketing to 27k psi at idle. They have replace a valve, the ecm and blamed my edge programmer which since has been removed, truck still has fuel pressure issues, now they are saying that the pressure limiting valve is bad and want another 600 bucks to fix it. I am broke as **** after replacing the injection pump, ecm, and the other part that they installed and they want another 600 without any garuntee that it will be fixed. I can't afford to keep paying them to change parts till they figure it out. Any help would be greatly appriciated. Codes pulled from the puter are p0088, fuel system pressure too high, and p0251, injection pump metering soleniod. I am at my wits end with this whole situation. TIA, Michael

 

[Msilbernagel]

Michael,

Well... first, I'm sorry. You may be money ahead finding a competent mechanic, though at this point one wonders what's left to swap out. They have replaced that metering solenoid?

It seems like the system doesn't know what the pressure is, perhaps? Isn't there a sensor that gives feedback to the ECM?

Also - if you can describe what "went terribly wrong" - perhaps it'll fire a neuron or two with the grey hairs and you'll get a good clue or two.

Good luck!

Mark

 

[lcaad1249]

Might check the FCA and also the rail pressure sensor. Both of which will switch out between any 3rd gen 5. 9. I'd change out the FCA first on the back of the CP3. When I was having problems (different than yours) I was told that the FCA controlled how much pressure the CP3 made.



My problem was the rail pressure sensor and the truck wouldn't make over 7000 psi so I'm not sure if it could be the culprit here also.

 

[Missouri Mule]

HighRanger, If your having a problem the best thing to do is to post on this site first then take it to mechanic or dealer.



Sounds like the dealer is playing hit and miss with your money!!!

Tell them if it doesn't solve the problem to take it back off and put the old one back on.

 

[RCarrillo]

#@$%! Dealers!! The more I read about 24 Valves, The More I love my 97" !

RikaRio

 

[Joe Mc]

HighRanger, If your having a problem the best thing to do is to post on this site first then take it to mechanic or dealer.



Sounds like the dealer is playing hit and miss with your money!!!

Tell them if it doesn't solve the problem to take it back off and put the old one back on.

My thoughts exactly! I'm sorry you're having such problems. If the dealer won't reinstall the old parts I'd be looking for them to box them and provide to me (apparently nothing wrong with them).



I'm assuming they've voided your warranty due to "aftermarket performance part installation"? If so you need to argue the point that nothing changed when you removed and try to reinstate.



I'd be interested to hear what when "terribly" wrong with the FASS install also? As it seems you've narrowed the FASS install as the culprit of your dilemma.

 

[HighRanger]

OK, the part that was changed the first time was the FCA, when the fass was installed the ppl took the plug from the fca in the injection pump and installed that to the wiring of the fass instead of the wiring from the transfer pump. The truck has not run right since. I am also curious to find out if i was sold the wrong pump but can't seem to get ahold of anyone to find this information out and the place of purchase was no help at all. So that is how this all started. I tried taking the truck to Cummins directly as soon as i got to Dallas from baltimore but they won't work on it. I'm still waiting to hear from edge to see if they found anything wrong with the controller. I'm just at a loss and out of money. I came down to deal with the passing of my father and now have a battle going with the dealership.

 

[HighRanger]

Also I should mention that the transfer pump runs a long time ie purge times when the key is cycled on to let the heater grid warm up. It used to only run for a seond or two and now it runs like 45sec before it cuts off. Dealer never adressed that complaint. I am taking the truck back to them monday for them to look at it and call star hotline again while they all scratch thier heads. No one can seem to figure out why my truck is doing this and they all have the same information that I have listed here. Oh I should note that the injection pump was also replace to the tune of another 1900. 00 bucks ontop of the over 2k paid to the dealer.

 

[HighRanger]

Anyone? Any Advice?

 

[JFaughn]

The way I'm reading this is that the Fast was hooked up to the wrong connections [ to eager to play , not saying anything bad just , been there done that ] .
So the way I go at fixing a problem like this is have a complete wiring diagram & a few copys to mark with high liter pen , trace wires with different colors for grounds , power and any component that has a coil/windings -like motors .
So then what your looking for is a short where there shouldn't be , because if you put in a new part , in a circuit with a short then it will burn up the new part , it could be as simple as a $20 relay thats got a melted coil/points ect.
To start look at all circuits that were involved with the Fast on both ends .
This is the kind of work that there is very few guys out there doing or able , because its not in the book , and a part may not fix it , its a hunt & peck job .
There used to be some info on wiring systems for cars & truck that if for some reason you were going to replace the computer , before you put it in , you'ld check all the circuits for power , grounds & resistance , each having a specific reading ,
But I haven't seen anything like that for some time .
This isn't a direct answer to your situation , just how I've gone about it in the past .
Keep us informed .

 

[LowFly]

I want to know how they got the FCA plug to work with the FASS Plug... ... WOW... this is a new one to me. I grew up about 5 miles from there In Coppell... . sorry I don't live around there anymore, or I'd help ya out personaly..... BUT anything from my end here... . let me know... .

 

[Semicrazy]

The logical progression for those two codes should have been to check the wiring circuits listed. Check the fuel pressure sensor with the scan tool. Check/replace FCA. Then if all else fails then try the ECM.



SYMPTOM

P0088-FUEL RAIL PRESSURE SIGNAL IS ABOVE MAX LIMIT



WHEN MONITORED

Engine running.



SET CONDITION

Fuel pressure is above a calibrated value for a calibrated amount of time.



POSSIBLE CAUSES

Fuel control actuator (FCA)

Fuel pressure sensor

Intermittent condition





SYMPTOM

P0251-CP3 PUMP REGULATOR CONTROL



WHEN MONITORED

When the ignition is on.



SET CONDITION

The ECM detects a discrepancy between the PWM supplied to the Electronic Fuel Control Actuator and the PWM returned from the Electronic Fuel Control Actuator.



POSSIBLE CAUSES

Intermittent condition

Fuel control actuator

(K31) return circuit open from FCA to ECM

(K65) 5-volt supply circuit open from FCA to ECM

(K65) 5-volt supply circuit shorted to voltage

ECM

 

[HighRanger]

Thanks Guys, Truck is still at the dealership. I really wish they would fix the damn thing instead of continuing to throw parts at it and hit me with the bill.

The FCA has beed replaced, almong with the Injection Pump, and the ECM, and the pressure limiting valve. Now they are replacing some plug I believe on the transfer pump but they can't get the part till thursday.

 

[JFaughn]

Get this all documented , everything , even conversations , that notes infront of them , get them to sigh if they will , this is the dealer , they should be doing diagnostics , not part swapping , if some thing got crossed / shorted , burned up a relay / melted 2 wires together , if they do not find , they will burn up every part they put in it , with all of this , you go to court and get your money back , in court stick with the concept , the if there is a place that should diagnose a problem , it should be the dealer [ thats in the world of reason / that we do not live in / but in court you may turn the table ]
if they see this coming , you may get them to bring someone in that can .
the only issue may be , if I read right , did you do the mod ? I would assume the dealer wouldn't ?
Thats where you could be one your own , if thats the case get the new parts back to them , get any refund that you can , and maybe some one here can recommend some one in the area that can do diagnostics , that may get you back on the road better .