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Orange spark - is this okay? 900 1995

posted by  Laozong on  Mon Jan 5 21:17 CST 2004
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last visit: Sat Mar 27 21:43 CST 2010
[RELATED]

940 Non-turbo

I am still trying to trace down an electrical fault that I've posted on three occasions just a couple of weeks back.
As suggested, I've tried substituting the fuel injection relay and the fuel pump relay to see if these are at fault, but results are the same.

Now, I'm looking at the spark from the coil and it is orange in color. I was told it should be blue. Does this mean that my car is not getting enough juice to fire?
Please advise.

FYI my car shudders whenever I turn on the headlights particularly the high beam. Voltage drops 0.50V at the battery terminal but about 0.20V at the alternator terminal.

Laozong






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