2013-04-29

Hi Folks, it is been a while since I posted last time.

I have a 98 2.5 litre, 5-speed with 128K on the clock. For last 6 mo. or so, I started experiencing engine rough idle, stalling problems with no CEL. ( I know, it doesn't mean there is no code, thinking about buying durametric soon ~$280)

I took out the throttle body and Idle control valve and clean them. I also cleaned the MAF. The problem still persists.

I read several posts on the forum that point to bad tps. I have the following several questions.

1. Does a bad TPS trigger CEL always?

2. Is there a way to test TPS, voltage, resistance, etc?

As always, any help is greatly appreciated.

Show more