94 T/A 5.7 won't start

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Oct 25, 2020 | 12:09 AM

Gene Montoya

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Joined: Oct 2020

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94 T/A 5.7 won't start

Omni spark, coil, wires, plugs, all new. Theres Fuel to the rail. Firing order is correct to omni
??? Any suggestion

Oct 26, 2020 | 08:06 AM

Z28Roxy

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From: Waukesha, WI

Are you getting these results:

http://shbox.com/1/4th_gen_tech2.htm..._testOptispark Harness

A = ~5vdc
B = ~5vdc
C = ~12vdc (or your system voltage)
D = ~0 - 0.2 ohms ground with key OFF

ICM Harness

A = ~10vdc-12vdc (or your system voltage)
B = 1vac-4vac while cranking
C = ~ 0 ohms to ground with key OFF
D = ~10vdc-12vdc (or your system voltage-might be slightly less than reading at "A")

http://shbox.com/1/95_ign_system_schematic.jpg

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