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Power to Ignition Coil but no spark.

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Old Dec 16, 2022 | 01:04 PM
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That was just showing the settings, alright I will do that
 
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Old Dec 16, 2022 | 01:08 PM
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Multi meter one end grounded to battery, other end on coil wire negative both sides unplugged getting that 1. Infinite reading
 
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Old Dec 16, 2022 | 01:10 PM
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Ok, that's the way its supposed to be. At this point, I am somewhat confused. Everything tests good, but, it doesn't work......

Verify you have power at the coil while engine is cranking. (coil not plugged in.....)
 
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Old Dec 16, 2022 | 01:31 PM
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Now I do not have power to the coil
 
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Old Dec 16, 2022 | 01:34 PM
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The way it is supposed to work..... PCM should engage ASD, and fuel pump relays for about 3 seconds at initial key on. After that, it won't turn them back on unless it actually sees the engine turning. (crank sensor signal.) Do you get the initial 3 second prime? (should hear the fuel pump run....)
 
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Old Dec 16, 2022 | 01:35 PM
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I do hear the fuel pump priming and after trying to start it I can smell the fuel
 
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Old Dec 16, 2022 | 01:38 PM
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But not getting power to the coil? If not, then try swapping the ASD relay with like the horn relay. See if anything changes. Also, make sure you are seeing power at pin 30 on the ASD relay.
 
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Old Dec 16, 2022 | 01:57 PM
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Swapped relay, I am getting power to pin 30
still no start
Am I supposed to be getting constant power on pin 30 even when truck isn’t being cranked?
 
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Old Dec 16, 2022 | 01:58 PM
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Have another warm body to help?? If so, stick your finger on the ASD relay, have someone turn the key on, does the relay click?
 
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Old Dec 16, 2022 | 02:11 PM
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ASD does click, got a test light on the wire to the coil am getting power to the coil. No spark. Put test light directly on ignition coil wile cranking and I am getting a light but no spark when held off of it slightly.
 

Last edited by Nate5; Dec 16, 2022 at 02:16 PM.
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