Date: 15 Aug 2005 10:27:31 -0700
Subject: Idling at 450rpm

At 2am this morning, doing 40mph through some roadworks on the M1 (Interstate to you american folks!) the "Check Engine" light came on. It was accompanied by the cruise control turning itself off, and a little loss (only just noticeable) in power. When I pulled over to gather my thoughts, I noticed it idled very lumpy indeed, at 450rpm! I eventually drove it 80 miles home at 1800rpm (damn it took a long time). I've checked the DI unit by swapping one in from another car and it made no difference so I suspect something else. When I switch the ignition on, I get 9 loud ticks (like a relay), then a quick whirr from what I suspect is the stepper motor. I thought the stepper motor always did that when you turned on the ignition? Anyway, any ideas what this could be, or any diagnosis/trouble-shooting I can do which might save me a hefty garage bill? Many thanks, Steve :)

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