Re: Engine won't hold 1600rpm

Well, it was a good excuse to build a new test lead. A nice tidy one with a box, and everything. Which was also a good excuse to run all of the diagnostics.

1. I need to run the diagnostics again tomorrow, as there may be an erroneous fault. I had disconnected the switch during the day, and run the engine to see what happens.

2. The relays for the cooling fan are being switched by the diagnostic output test, so the problem is the poer itself. So that's a bonus.

3. My climate control compressor relay is not being switched, so that's another fault part diagnosed.

What is the difference between the -B and -D versions of the throttle switch?