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No spark at coil

Tiny
MCARRILLO89
  • MEMBER
  • 1984 MAZDA B2000
  • 2.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 80,000 MILES
No spark at coil, replaced original which had weak spark and would stall completely after a few revs but then replaced it. Now it wont start I'm starting to think it's the way its wired. It might be incorrect but I can't find a diagram to save my life out here or online. I replaced the plugs, wires, distributor cap and rotor, pick up coil and ICM. What gives?
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Sunday, September 19th, 2021 AT 7:41 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
We need to start with checking for spark by pulling a plug and hold it against the block and then crank the engine. If you have spark then we need to look else where.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

If there is no spark then I attached the info below on how this works.

It could be a wiring issue or just a faulty part. Unfortunately that happens frequently.

Please see the info below and let's run through this and let us know what you find. Thanks
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Monday, September 20th, 2021 AT 11:21 AM

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