Survivalist Forum - View Single Post - LP fuel injection surging - Zenith CG13
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Old 08-14-2019, 12:45 PM
casey360360 casey360360 is offline
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Originally Posted by Central Scrutinizer View Post
If you put your scope across the coil you should see the waveform as it is pulsed. If the amplitude collapses when warm , either the coil shorted or the driver transistor is failing.

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As I was getting ready to reply Zenith gave me a callback, they are pretty darn awesome. He explained how the entire fuel system worked down to the details. The injector ground is pulsed to make the injector fire, you can see on the wavelength that when it surges the ground pulse is significantly shorter than when it fires correctly. Their tech confirmed with that information plus the 0.5ohm reading that the injector coil is faulty.

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