Quote:
Originally Posted by Spang4190E
Simmo,
In reply I just added that I tried raising base idle and the computer put idle back to 500rpms, so I know that the computer is in control and is responding. Could the RPM sensor on the rear of the motor be getting a false reading or sending a false signal? With heat, resistance increases. Does this sensor generate its own voltage, like a piezo cristle in the knock sensor or is it a hallaffect switch? I am new to MBZ, but know OBD2 verrrry well.
I love this little car but the stalling is a safety issue.
Spang
|
Don't overcomplicate the issue. I know of no way of raising the base idle other than the method I have outlined above, which was based on a Service Bulletin covering the late 80s models. I think you're looking for stuff that isn't even there on your engine.
Did you check voltage to the ICV? If the engine is idling at 500 I doubt it is working, idle should be at 700.
If this is only happening when the engine is hot, check the ICV connecting hoses for leaks, although I think this is more likely to result in a hunting idle rather than stalling.
86560SEL: There should be no need to touch the accelerator when starting the car, it's designed that way. As for the stalling when hot, I'd suspect the hoses on the iCV for wear and cracking from the symptoms you describe but I don't know anything about your engine, is it an 8?