My Dad has a 94 dodge V-10 and he put on an aftermarket performance computer and a bigger throttle body. The truck runs good after the mods, but the service engine light came on after the bigger throttle body. Any ideas what could have made this come on. The factory computer and t-body didnt make the light come on. Thanks.

 

can you get a code reader put on it and pull some codes.

 

You can get the codes by doing the key dance and counting the MIL flashes.

 

we will have to take it in to a shop to get the codes.... How do you do "the key dance"

 

Key on and off 3 times in less than a certain time (I think it's 5 seconds) and count the flashes.

 

I would guess, the Idle Air Stepper motor or the Throttle Position sensor is out of whack.

If it starts and idles ok, you can rule out the IAS. If it's an automatic, does it upshift ok (like from Drive to OD, or 2nd to Drive)?

I used to have a 99 V10 before my current truck. So I did have an issue with the TPS going bad. I'm not aware of what the differences were between the 94 and 99 model years, if any.