dealer can't figure what is wrong with my truck. it is a 2004.5 3500.the codes are p0191,p0237.p0341,p0652. it all stared by cutting out with no codes so i changed the fuel fliter.i done that three times in one week, with no codes.the last time i changed the filter it did not stop cutting out.shortly after that it threw the codes i have now.i was out of state at the time so i continued toward home.before i got home the check engine light was out.the truck ran fine.so i continued to drive my truck with no problems for another day.then they were back and it ran like doodoo. so i took it to the dealer on 4-23-06.they have had it a whole day and they still don't know what is.
another thing that bothers me is the 191 code does not apply to my truck ,but it is still there. any help would be greatly apprieciated.

p.s. they are charging me 85.00 hr

 

Shoot! At that rate you might have to get 2 more jobs; hope they get 'er fixed for you ..... SOON!

 

P0191 Fuel Rail Pressure Sensor Circuit Performance
P0237 TC Boost Sensor Circuit Low Voltage
P0341 Camshaft Position (CMP) Sensor Performance
P0652 Sens Ref Voltage 2 Circ Low

 

P0652 Sensor Reference Voltage "B" Low
Are you out of warranty? How many miles?

 

oh yeah, i am way out of warranty at 175000 mi

 

now they want 1650.00 to install a new wiring harness

 

I seriously doubt the entire wiring harness is bad..

I would take it somewhere else for a second opinion......

$1650??? That nuts!!!!!!

 

Sounds like a loose connector or dirt in connector to me. From all I heard, one of the most difficult things to track down but most likely you don;t need to replace the harness. The dealer just wants a quick and expensive fix. Isn't that the standard way with them!
-P

 

Some one on here had a similar problem...

He had chafed wiring under the AC compressor causing all kinds of codes that related to cam position sensors etc.... he said the wire ran to close to the Ac compressor and wore through.. you can see them from under the truck..

I think it was bad rad jammer..