1988 audi 5000s quattro random no spark issue
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Audiworld Junior Member
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I don't know what you opened (DME) perhaps the TCM (Transmission control module or if you have anti-lock brakes the ABS module), but the ignition module looks like the following link. See RockAuto.com for more info.
http://www.rockauto.com/catalog/moreinfo.php?pk=480483
http://www.rockauto.com/catalog/moreinfo.php?pk=480483
Thread Starter
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I think I meant to say the cam sensor in my post before. The cam sensor is in the distributor, the crank sensor would be on the top of the bellhousing if its there.
Start with the testing laid out here:
http://www.sjmautotechnik.com/troubl...g/nostart.html
Start with the testing laid out here:
http://www.sjmautotechnik.com/troubl...g/nostart.html
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Since this is a 1988 quattro (stick shift) there is no TCU (transmission control unit). The ECU (engine control unit) for turbo engine is located behind the front passenger kick panel. The unit that located in the back seat is the ABS anti-lock brake system see picture.
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hah, okay well that clears that up. for the record, my abs appears to be working just fine. 
audiqv8; thanks for the clarification!
by the way, where are you getting these diagrams? i have the bentley shop manual and i don't see these diagrams in there.
audiqv8; thanks for the clarification!
by the way, where are you getting these diagrams? i have the bentley shop manual and i don't see these diagrams in there.
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Your car don't have an ECU instead it uses an ignition and fuel control module. Your fuel control module is similar to the ECU. It is also located where the turbo engine ECU is located (behind front passenger kick panel). Check to see if there is moisture inside the unit. Moisture inside the ECU (turbo engine) can cause a lot of problems. When the car fail to start was it raining that day or the day before? Did you drive through water that day?
Thread Starter
Audiworld Junior Member
Joined: Jul 2006
Posts: 59
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Your car don't have an ECU instead it uses an ignition and fuel control module. Your fuel control module is similar to the ECU. It is also located where the turbo engine ECU is located (behind front passenger kick panel). Check to see if there is moisture inside the unit. Moisture inside the ECU (turbo engine) can cause a lot of problems. When the car fail to start was it raining that day or the day before? Did you drive through water that day?
thanks so much for all your tips and ideas.
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despite the freak snow and hail storm in seattle yesterday, i braved the weather to investigate this further.
first, i looked for the igniter (ignition control unit) in the area between the engine and the windshield (under the wipers) and could not find it anywhere. i even traced all of the electrical wires to verify where they all terminated.
i did notice what looks like an igniter attached to the actual bracket that holds the coil. i've attached a photo here. can anyone tell me if this is in fact the ignition control unit? note there are only three plugs instead of the six mentioned in the manual.
and a close-up of the connector;
first, i looked for the igniter (ignition control unit) in the area between the engine and the windshield (under the wipers) and could not find it anywhere. i even traced all of the electrical wires to verify where they all terminated.
i did notice what looks like an igniter attached to the actual bracket that holds the coil. i've attached a photo here. can anyone tell me if this is in fact the ignition control unit? note there are only three plugs instead of the six mentioned in the manual.
and a close-up of the connector;