If the plug wires get hot it will definitely cause it to die down. i've had it happen on a couple of occasions.....but if its bad wires and you give it gas, it wont clear up.

 

yea the only thing is we never get a code, and it only does it on cold start, I would thing a coil would do it all the time did u get it all the time? or just on cold starts?

 

Well with my truck i had some plug wires go bad....I ohmed them out and found it to be the problem. The second time i had just rebuilt the motor and had a plugwire laying on the exhaust manifold. When they wire got hot, it started missing. Before with the bad plug wires, I was going up a hill on the interstate and it acted as though it ran out of gas basically. Lost one cylinder, then another, then another. It was still running when i pulled over, but only on about 4 cylinders. It didnt have enough power to move. I waited about 30 minutes and cranked it right back up and went another 5 miles until it did the same thing again. I really dont think that's your problem though since yours clears up when given gas. You can ohm out the coil just like plug wires. Remember to ohm it out when its cold and when its hot. It could be crapping out when its hot. Did you check for that potato in your exhaust yet? haha. Oh, and how did you test your tps? If i rmemember correctly you check it with the ignition on and measure voltage right?

 

yea it does it all the time from starting it to sitting at a light to feathering the gas but i would put it in overdrive when i didnt know the exact problem cause i was afraid of misfiring all cylinders and seizing up the only thing i can say is take it to a dodge dealership...

 

did you check the o2 wiring? or the o2 itself? cant hurt.

what about the tps, did you pull it back off and re-mount it? I did a search for coils being bad on another forum and found that when they are cold, they either work or they dont. do you have a buddy near by who you can swap with?

 

ah ok. Ohm out your wires and coil.

 

uh, check that.. doesnt make sense with the symptoms you have...

how long has that o2 sensor been in there, maybe its due for a change.

 

YEP could not find the potato (hahaha) well im sure i cant be the wires because it only does it tell the engine is running for about 20 mins or i drive in about 2 miles the O2 sensor is old but in the chrysler corporations book it says the comp does not even read the O2 sensor tell it is warmed up (im not sure why) iv unplude the TPS sensor and pluged it back in about 3 or 4 times but all the sensors Test good. the voltage on the truck tested good on the wires. and someone said i could try it with-out the O2 sensor hooked up (it worth a shot)

 

Yeah i told you that about the O2 sensor. The truck will run without it. It doesnt begin working until about 400 degrees if i'm not mistaken. The truck runs a little rich before the o2 sensor kicks in by design. Unplug the sensor. if the truck still smoothes out after a few minutes without it hooked up, you've ruled that out. I thought before you meant that it starts doing it after its warmed up. If it does it cold you could have dirty injectors.

 

Next time you have it hooked up to the computer, watch your timing and fuel curve-injector pulse duration and # of itimes they fire,I am betting they are not firing like they should in open loop mode due to a PCM issue after reading everything you have tried,if they are firing correctly then you probably have an injector problem as clemson725 indicated.If it idles fine when you sprayed carb cleaner in it, it is not coil,wires or plugs. I am not 100% positive,some other person on this forum may know, but I believe open loop mode may be pre-programmed into the PCM's eeprom, if that programming is messed up then you have no choice but to replace the computer.'96 to '98 Rams have been notorious for re-writing the eeproms when disconnecting the PCM if you don't disconnect the battery first, some of them have had bad PCM connectors also,in fact dodge put out a repair bulletin on them. Do you have access to another computer you could try in it?