93 100CS no spark, No inj pulse

Old 10-27-2006, 12:57 AM
Thread Starter
Join Date: Oct 2006
Posts: 1
Default 93 100CS no spark, No inj pulse

Heya....got a customer who brought in this 93 Audi 100CS. He had a "friend" swap out an engine for him. He originally brought it in 'cuz his friend burned the wire for the crank sensor. He informed us that the car had not been started with the new engine in it(not new, same year model make). It has no spark and no injector pulse. We ran all the wires, checked fuses and relays. Check connectors,etc. Nothing. It appeared that the computer was not functioning so we swapped it out for a boneyard brand. Still nothing. IT cranks but absolutely will not start. Any ideas other that the fact that it was a complete hack job on the engine?
Old 10-27-2006, 02:36 AM
2nd Gear
Join Date: Mar 2006
Location: Black Mountain, NC
Posts: 852
Default RE: 93 100CS no spark, No inj pulse

Did you check the crank sensor ? and does the signal from it actually gets to ecu ? or possibly bad ground connections somewhere.
Good luck.
Old 10-28-2006, 03:04 AM
Join Date: Aug 2005
Location: Brooklyn, NY
Posts: 1,561
Default RE: 93 100CS no spark, No inj pulse

crank the engine and the without turning of the ignition check the codes in the system by flashing them out. and report back.
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