hi, i have a 2002 plymouth voyager 3.3. i am having issues with it. this is my problem. when i start my car the cruse control light flashes on and off continuosly, the idle jumps up and down and it burns really rich. if i wait until it warms up then i can rev it up to 3500 rpms and hold it there for 45 seconds and the cruse light goes out and the car runs fine until i shut it off. then i have to do the same thing again to get it out of its spell. its also throwing 8 different codes. p1684 p0601 p0645 p0122 p0123 p0118 p0134 p1299 everything points back to the pcm, but i would like some help with this before i buy a new computer. please help... thank you

 

P0601 will require a PCM. The others may or may not be related. Pull out the connector to the injector rail. It's behind the ignition coil on the back end of the rear head. You'll have to move the power steering reservior out of the way. Peel open the wrap around the harness (velcro) and see if you have wires melted together.

 

ahh I love finding that mess

 

thank u. i'll try that first before i order the new pcm.

 

$$$$$ ME too!!! $$$$$$

 

last night i opened up the wire harness behind the rear head and found that all the wires were in perfect condition. dose anyone have any other idea's where to look for melted wires that are known to be common. i really don't want to order a new ecm if its not going to be my problem. thanks for your help.

 

humm dont think u got the right side it would be behind the coil pack there will be 2 different ones look both sides as well look down the harness some they will look melted

 

thank u again. i looked at the harness behind the coil pack, traced it down the back side of the engine and all the way down the injectors. i found all the wires were in good condition so i taped the harness back up. i ordered a new ecm through auto zone for 232.00 that came programmed to my van. i installed it and all my major problems went away, thank god!!!! the only think that i noticed since i put the new ecm in is when it is cold i can't drive the van, it bogs out and don't want to go. so as its warm it runs great. codes are p0132 p0134 and p0135. they are all saying its the o2 sensor, bank one sensor one. could that make the van run that way when its cold.