For vacuum leaks, pass propane across the vac lines and listen for idle change. If the engine revs or bogs down, there's a leak.

 

You said at stops and slow downs it tries to stall. If you can try the line from the booster just plug it up and try it out. Like mentioned (newman) propane can give away most vacuum leaks.

 

Many thanks for the replies, I'm gonna try the booster line and propane check all others, how hard is it to remove and clean injectors ?

 

sounds like it might be the same issue as this current thread....
https://dodgeforum.com/forum/2nd-gen...most-dies.html

 

Freezing this morning so warmed truck up. Couple more observations, has glass pack exhausts and swore I could hear intermittent pop sound of a leak also faint gas smell.

 

Also tried the 3 x ignition key method, got this code (s) ?, and i know the 55 is end of code,

1 2 3 7 (55)

Is that 2 codes ie, 12 and 37 ?

 

Yep.....

 

Well I believe 12 is something with the cam I know that since I read that up on my own it was retarded timing or somethin like that. As for the 37 I have no clue but check in the DIY they have the codes there in order.

https://dodgeforum.com/forum/2nd-gen...code-list.html

 

Here's the code list, read Note#1 at the bottom. http://dodgeram.info/Engine-Gas/OBDI/pcm_fault_code.htm Try resetting the PCM first. If you don't have the temp sensor, don't worry about the code. If you have the temp sensor replace it. Remove the negative battery cable before replacing the sensor.

 

To summise she was stalling in turns at low revs and in reverse. I have cleaned throttle body, replaced aic sensor, replaced tps sensor, new plugs, oil, filter, air filter, new water pump, power steer lines, 93 octane. Still hunts rpms at low revs BUT still stalls in reverse when putting slightly on gas...