hessam69
Well-known member
- Joined
- Jun 19, 2009
- Location
- Sydney, Australia
Hi,
I'm working on a 1991 240 at the moment. I removed and cleaned the throttle body, noticed the idle speed screw had been played with and the TPS was adjusted incorrectly. I cleaned the throttle body properly, loosened the idle speed screw so it no longer had effect, and adjusted the TPS so it would click upon opening of the throttle.
Now the car barely idles, (<500rpm) and stalls. I tested the IAC valve, found it to be working. Swapped it with a known working IAC valve, the problem is still happening. I am getting 12v to the IAC valve connector also.
What are some possible causes?
Thank you
I'm working on a 1991 240 at the moment. I removed and cleaned the throttle body, noticed the idle speed screw had been played with and the TPS was adjusted incorrectly. I cleaned the throttle body properly, loosened the idle speed screw so it no longer had effect, and adjusted the TPS so it would click upon opening of the throttle.
Now the car barely idles, (<500rpm) and stalls. I tested the IAC valve, found it to be working. Swapped it with a known working IAC valve, the problem is still happening. I am getting 12v to the IAC valve connector also.
What are some possible causes?
Thank you