[QUOTE=Histriker1;3415793]I think it is easier to tell if the torque converter is unlocking/locking properly is by hold the pedal at a constant speed then tapping the brake pedal. You should see the RPMs go up 250-300 or so.[/QUOTE

Rpm go up from tapping the break?

 

tried this and Rpms did go up! Multiple speeds....

 

The torque converter lock up seloniod is wired through through your break switch, so when you tap you breaks the torque converter should unlock, hence the reason your RPMs increase. If your brake switch isn’t properly adjusted or other issues with torque converter this will not happen. Easy way to check if it ts working.

 

Good call.

 

I had a similar challenge and did the following in this order;
- new fuel filter [no change]
- clean throttle body and IAC [no change]
- new IAC [no change]
- new TPS [no change]
- cleaned grounds [no change]
- checked leaks around throttle body [no problems]
- replaced CPS [Bingo, balloons, streamers, marching band, dancing girls, etc]


I now know that everything is new and good and working.

 

My cps is mopar part and 1 yr old. I tested for leaks with propane and nothing was found.

 

Doesnt mean it is good despite being relatively new. Sadly some people have that luck and some sensors go out weeks after being installed and having to replace it again. Annoying, yes!

 

For 200+ it better be good, and i don't think it's the sensor. I've never read these symptoms being similar.

 

You can try making the computer re learn idle. Had the exact same issue for months until I re set it. Unhook your batter for 20 mins ish , hook it back up and start normally without touching the gas before engine starts.