[Discseven]

Originally Posted by proporsche

Karl, your model has it too..just look under the left front fender for loose hoses .part number /91120107702

Ivan

Ivan... will look in there later today.

Originally Posted by PeteKz

Karl, re throttle switches. As I said, I'm not as familiar with the setup on the 3.2 Motronic engines. I hope someone else with more expertise in the Motronic engines will weigh in on this issue.

However, there are two switches on the throttle body. One indicates to the ECU when the engine is at idle, and the other clicks when the throttle goes past about halfway. That's what signals the ECU that you are at "full throttle" and it goes to open loop full enrichment for full throttle operation. If it was misadjusted, such that the switch was clicking at, say, 1/4 throttle, then it would go to full enrichment at 1/4 throttle.

More than that, I would have to dig into the manual.

Pete... Thanks! Not putting it on you to dig! I'll do it.

Originally Posted by wazzz

To add to what Pete says above, it is also important to check that the idle switch closes as soon as you release the throttle, because that's what tells the Motronic to cut fuel supply to injectors until the rpm has gone down to some threshold (can't remember exact threshold value, but must be somewhere around 1200 rpm). This plays an important role in fuel economy.

Gilles... Got it. Thank you. Get back to topic of these 2 switches after sorting out how to test them and what positions they should be in---and where mine are.
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