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E28 (1982 - 1988)

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Old 04-03-2018, 09:38 AM
Makuch Makuch is offline
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Location: ON, Canada
Join Date: Mar 2018
Posts: 4
Mein Auto: 1988 535is
Only 9v to coil, no spark HELP

So Iíve been trying to get my 1988 535is M/T going and have had nothing but issues because of the PO repairs.. I have recently replaced the fuel pump and filter, all the relays and fuses checked all my grounds in the engine bay but all the car does is crank. I tested the ignition coils ohm values and they checked out as good. With the ignition on I get 9.2v at the coil and when I crank it doesnít produce a spark.. I know the ignition signal is sent through the ECU pin#1, is it possibly not sending the ground to spark? I am out of ideas. I also swapped another ECU in and it made no difference.
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