2004 Silverado 1500 SS no coil pulse
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2004 Silverado 1500 SS no coil pulse
2004 Silverado 1500 SS, 6.0L
I am not getting a trigger pulse from the ECM to fire any of the coils.
I have power, ground, and continuity between the coils and PCM.
I do have injector pulse.
I am thinking ECM is bad, but I wasn't sure if anything would kill the coils? Looks like if it was security, I would have that light activated, and coils AND injectors wouldn't be getting trigger signals.
I am not getting a trigger pulse from the ECM to fire any of the coils.
I have power, ground, and continuity between the coils and PCM.
I do have injector pulse.
I am thinking ECM is bad, but I wasn't sure if anything would kill the coils? Looks like if it was security, I would have that light activated, and coils AND injectors wouldn't be getting trigger signals.
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YellowFever59
Silverado, Sierra & Fullsize Pick-ups
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Dec 27, 2021 5:44 PM