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INTERMITTENT, SEVERELY POOR IDLE/PERFORMANCE 900 1992

uid 14317's pic
posted by  Most Unusual on  Sat Feb 20 04:49 CST 2010
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last visit: Tue Jan 7 20:53 CST 2014
[RELATED]

Greetings all. Once again, I need a bit of help.

I just completed replacing the head gasket on my '92 960 (straight six) with 196K miles. Prior to this, I had no (zero) problems with rough idle and no performance -- THIS IS A MAJOR PROBLEM.

However, now that the engine is back together, this problem is present.

1) Cold, the engine starts easily and runs perfectly.
2) After about 15 minutes of driving, the engine seems to be running on 3 cylinders, has no performance and barely idles.
3) After cooling off about 30 minutes, it will start and run perfectly again. 4) When the engine gets hot again, the cycle repeats.

I suspect that one of the Power Stage ignition modules is faulty.
Is there a test for this? I did not
What are your thoughts?

As always, thank you for your input.
Greg

--
'01 V70 Wagon, 168K miles...'92 960 Wagon, 196K miles...'92 740 Turbo Wagon, 225K miles (sold)






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New INTERMITTENT, SEVERELY POOR IDLE/PERFORMANCE [900][1992]
posted by  Most Unusual  on Sat Feb 20 04:49 CST 2010 >


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