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Old 04-06-2005, 10:26 AM
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Steve Gutman Steve Gutman is offline
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Join Date: Feb 2002
Location: Chicago, IL
Posts: 492
I had similar problems and after R&R of the primary ignition and idle control systems and using some exotic German fuel injector cleaner I changed the fuel injectors. It made all the difference. My car has a K-Jetronic system with manual fuel injectors. If yours is the same, it only cost (only?) $230 to change them and all the plastic and rubber parts. Unless you want to learn the system for the future or are just curious, I would check the fuel injector spray pattern first. My car was at 120,000 miles at the time.

I alo had a negative experience with aftermarket wires. The ends were not stripped and crimped. This forces the current to jump a gap before making it to the plug. At low RPM it may fail to do so.

I have had more than one mechanic tell me that these engines never idle well, but I keep trying...
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si
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