So I have joined cause of all the helpfull people on here,Thanks bye the way !!! I have recently changed ECM because of the P0601 code and front side O2 sensor because of P0155 code.Truck has been great good for about a week and this morning check engine light is on again......throwing the P0340 and P1391 codes,It starts up and stutters like its running out of gas and dies.This is becoming a nightmare.....anyone else with the same issues ?

Jeff

 

Welcome to the site

Is that P0340 or P0430? I just want to make sure

P0340 is Cam Shaft Position Sensor. That could be a bad sensor, loose connection or broken wire to the sensor

P1391 is the same

Google/board searching always helps

https://dodgeforum.com/forum/1st-gen...sometimes.html

https://dodgeforum.com/forum/1st-gen...ode-p1391.html

https://dodgeforum.com/forum/2nd-gen...and-p1391.html

 

Thanks for the response.....it is the 0340 and 1391 for sure.Does one trigger the other or whats going on ? seems like a chain of events thats never going to stop,lol.

Jeff

 

On a quick note,mine is the 2002 dodge ram 1500 2wd,4.7 liter quad cab.

 

Those codes wont change for an 02 5.9.

I understand your question and concern and they could be related to the bad or other PCM and then again, this may be a new unrelated issue

 

So i read another thread and said maybe the reset of the computer and making the new ECM learn all the components....is this possibly true ? should i give that a shot before spending 100.00 on parts ? And your saying that it doesnt matter whether its a 4.7/5.9

 

resetting the PCM wont hurt but I doubt it will help. Pull your batt cables and wait a few minutes and reconnect them.

ODBii codes are standard. Although the troubleshooting foe the component may differ from one ride to the next. The meaning of the code itself is the same no matter what year/make/model/engine

 

ok,cool...I will try the reset and see what happens then repost.Thanks again !!

 

Does anyone have the schematic for the placement of both sensors
thanks

 

Use the 2003 service manual from weeds signature link.

The 02&03 are pretty much identical.