Help, no spark!
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New User
Joined: Oct 2006
Posts: 1
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Help, no spark!
I have a 90 BII with a 2.9, I have no spark from the coil. I have replaced the coil, pickup coil, tfi module, tfi pigtail plug, cap, rotor, ignition switch, relays, checked computer grounds at battery, and the computer checks out ok. I'm not sure but I think I have narrowed it down to the wiring/grounds, but what wires? Where? tfi module ground maybe? where? any other suggestions would also be helpful
Posting Guru
Joined: Sep 2004
Posts: 1,915
Likes: 1
From: Yokosuka, Honshu, Japan
Check for power at the coil primary with the key in "run" with a voltmeter. Positive lead on the Red/Green stripe wire and negative lead on a good ground (body, engine block, frame, etc). Voltage should be within 90% of battery voltage, if I remember right. I forget the secondary test for the coil to see if it's good (I am guessing all these parts are NEW and NOT used?). You may also want to do the TFI module tests as well. Odd that you have all those new parts and power to the computer, but no power / spark on the coil secondary. More info in the Read First threads on here as well as any repair manual, like autozone's online repair manual http://www.autozone.com/repair_info.htm .
