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>Dan, thanks for the note, I'm glad that your problem >was fixed. > >Just a little correction. My website is >www.electronikrepair.com and the best way to reach me >is at info@electronikrepair.com > >Rich >> >>928 Porsche Fuel injection system shutdown. >> >>“You have twice as much good luck as you have bad >>luck.” –Chinese proverb >> >>A complete shutdown of the fuel injection system in >>the 928 is often caused by a circuit failure in the >>ECU or brain. The brain is located behind the >>passenger side kick panel, and is the larger of the >>two control units. Naturally, it’s the hardest one to >>remove. >> >>Failure symptoms may include a shutoff of the fuel >>pump, and a woodpecker noise in the intake manifold >>during cranking, and intermittent stalling. The car >>will often idle but will die whenever the throttle is >>opened. Onset can be sudden, or produce a lingering >>intermittent stalling problem. >> >>First impulse is to test the pump and pump relay, but >>hot-wiring the pump itself can test this. If the pump >>runs, and If the car still won’t run above idle, in >>all probability it’s the ECU. The Bosch ECU used a >>hybrid circuit board in the 928 that produces the >>above condition when it fails. Parts sources will >>quote you between $750-$1400 for a rebuilt unit which >>will send you flying to the Internet. >> >>During my search I ran across an important article on >>the serious, car killing flex plate design problem in >>automatic trans 928’s, so I called the originator of >>the article, Exotic Motorwerks in Phoenix. I asked >>about ECU re-builders and they kindly referred me to >>Richard Andrade and Electronik Repair in Mesa, >>Arizona. >> >>Richard is a well known 928 enthusiasts and electronic >>engineer. He has studied the problem and developed a >>rebuild with a master ECU rebuilder in Europe, that >>replaces the faulty hybrid circuit with vastly more >>reliable components. Total cost was substantially less >>than the quotes I had in hand, and turnaround was two >>days! I was able to get back on the road, avoid >>storage charges, and I learned a lot about the 928 in >>discussions with Richard. By the way, he is looking >>for a few cores so if you happen to learn of an >>orphaned 002-504 series 928 ECU give him a call. >> >>Further, Richard produced a very comprehensive PDF >>file to troubleshoot the ECU problem, which is >>attached. If you are going through an older S4 you >>might consider this as a preventative procedure, as >>many ECU’s are failing in the 928, and the problem is >>not something you want to deal with while breaking in >>a new romance on a road trip. >> >> Richard is prominent in the national 928 club and >>both knowledgeable and helpful. His website is: >>WWW.electronickrepair@earthlink.net >> >>Ask Richard for a PDF copy of his article on the flex >>plate tension problem in auto trans cars, and check >>for this condition on your car. Un-corrected this >>problem can lead to the complete loss of an engine, >>which is a memorable inconvenience in a 928. Now, for >>those of you who would like to sign the ballot >>initiative to eliminate the California Highway Patrol, >>break into groups by first letter of last name… >> >>Dan Baker >>Lake Havasu, Arizona
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