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Author Topic: Weak spark  (Read 666 times)
Foxbodygirl
4 Banger
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Posts: 25


Location: Carbondale, il

« on: July 28, 2018, 08:56:41 pm »

So this thing is still being a pita 94gt 5 speed..  Weak spark at at coil. Coil is getting 12volts. I even swapped my stock coil back over and the spark was less. Replaced the tfi module, same result. Iím beating my brains out trying to figure this out.
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94GT 306 ci, explorer intake, reworked e7 heads, 2030 powermax cam, forged Pistons, Mac lt headers and prochamber mid pipe, t5, 3.55 gears
Foxbodygirl
4 Banger
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Posts: 25


Location: Carbondale, il

« Reply #1 on: July 28, 2018, 10:23:06 pm »

Just ohm to coils. Stock coil pos to neg is .4 ohms. So that is in spec. From pos to coil terminal the reading is chaotic. Just jumps all over the place. On the msd coil, pos to neg is .4 ohms. From pos to terminal is 4.17 k ohms. That seem low to me. Read that typical readings are between 6 and 15 k ohms.
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94GT 306 ci, explorer intake, reworked e7 heads, 2030 powermax cam, forged Pistons, Mac lt headers and prochamber mid pipe, t5, 3.55 gears
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