Need to make an edit: It came on this evening as I was going up a hill, so not just while coasting or stopped, but it definitly occurs much more often when coasting or stopped. And Jer, thanks for the diagram I'm gonna have to solder one of those up.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth