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Porsche-O-Phile Porsche-O-Phile is offline
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Join Date: Feb 2004
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The good news is it sounds like nothing mechanical - so a lot of really tedious & expensive repairs are out as a cause.

This leaves the basics - air, fuel, and spark.

Is it possible that you have an intermittant air supply blockage? Unlikely.

Fuel - it sounds like possibly an intermittant fuel starvation problem could cause this - check for pinched lines, clogged lines, bad filter, bad fuel pump, etc.

Spark - could be loose coil wire, or possibly the computer control (DME) or its relay, like AFJ said. Start with those things and take it from there.
'74 911 Targa 2.7 (in storage, hoping to finish "someday"), 2001 Mercedes SLK 320 (with a few AMG fun bits), '85 BMW K100, a few surfboards

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Old 06-10-2004, 11:41 AM
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