What code??

[CurtLee]

I recentally did a code check on my 04. 5 truck by doing the key cycle. The code it pulled up was a P 0191. What is this code and should i be concerned?? I also went back and looked in TDR issue 55 page 96 where the fault codes are listed but it wasn't there. Is there someplace else i could go for all of the codes?

 

[JLandry]

That's a generic OBDII Trouble Code:



Fuel Rail Pressure Sensor Circuit Range/Performance



You can look up trouble codes here:



OBD-II DTC Database - Diagnostic Trouble Codes



or here:



OBD 2 Fault Codes Reference Guide



or here:



Actron®



Regards,



John L.

 

[CurtLee]

Thanks JLandry I'll have the dealer check that out for me when i get a chance.

 

[donnier]

FWIW, iv had that code twice on my 05.

Did some checking and it is a fuel pressure sensor code.

The dealer replaced the sensor the first time and reset the code the second time.

Havent had any further probs with it since.

I have heard of several 06 models with the same problem.

Also here is another list of codes that might be helpful.

Computer codes - Diesel Truck Resource - Wiki