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2001 GMC Jimmy, RWD, 4.3, MFI no poppets.
- mousetraxx
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11 months 3 weeks ago - 11 months 3 weeks ago #67077
by mousetraxx
2001 GMC Jimmy, RWD, 4.3, MFI no poppets. was created by mousetraxx
Hey everyone. I'm new to the oscilloscope scene and was curious if anyone may have input for this waveform. I'm still learning how to read various waveforms and would appreciate any feedback on this matter. I'm chasing an intermittent misfire on more than one cylinder. Mostly cylinder 1, but other times its 4, 5, or 6. I'm curious what the change in voltage of this waveform may be indicating. Lead A is amp clamp on coil primary, Lead B is secondary capacitive pickup on king lead from coil to distributor.
Last edit: 11 months 3 weeks ago by mousetraxx. Reason: added info
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