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I have a 1998 2500 dodge with 5.7 diesel.. my truck has a check engine light that comes and goes so I carried it to the local dealer and had it checked and the guys there told it was a RF interference probelm and they updated the controller with Part #56046355AE (I have no clue what this is) and that worked for a while. now the light is back on and the guys at the shop says that i need to insulate a wire inside TSP by removing it from the wiring harness and wrapping this wire with a small guage copper wire from end to end and then attach both ends of this wrapped wire to the - (NEG) posts of my batteries.. Has any one had this probelm before??? if so, does this fix that these guys offered work?? can anyone tell me which wire should be wrapped?? THANKS for any help that can be offered.
 

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TDG Mafia Member #21
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Fill out your signature block so we know exactly what you are driving and we will be able to help you better with any problems you are having. If you need help with that we can point you in the right direction. If you click on user cp at the top you will see where to click. Welcome to the site.
 

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Welcome to the garage!
I know what you're talking about. I haven't had the problem myself, but I've heard about it. I'm trying to remember exactly where, but somewhere I have a tech article on it. I'll dig it up or a link to it and get it to ya. Off the top of my head I don't know which wire it is, but we'll get you sorted out. But if its any comfort, you aren't the first to have this problem, and the wire fix supposedly works from what others who have done it have told me.
Sean
 

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ok I found what I was looking for. I'm not sure if it is the same thing or not but it sounds like it may be. This is if your trans is locking/unlocking. Some people say that just resetting the APPS works for them and some have said that only worked temporarily. In that case they either put in a noise box from DTT (too filter out the electric noise which apparently interferes from time to time) or they insulate the wire from the Alternator to the negative post on the Battery, by wrapping it in aluminium foil or wrapping it in a copper wire as you stated above.

I haven't done this, so I don't know if it works or not. This is just what I've read from others. Its worth a shot seeing as how it will cost next to nothing. I don't know what it has to do with the TPS, but if Reseting the APPS/TPS work temporarily for some people and then this worked permanently it seems that there is some relation. Hope this helps.
Sean
 
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