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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

s10 blazer no start , cam signal problem

  • yhspeed
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8 years 6 months ago #7580 by yhspeed
working in 99 blazer s10 . no start , it has spark and injector pulse is too short . when put my scope and check cam signal , i saw this .
what do you think guys ? it dosen`t look like a tipical cam signal
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8 years 6 months ago #7602 by borntoroll
Replied by borntoroll on topic s10 blazer no start , cam signal problem

yhspeed wrote: working in 99 blazer s10 . no start , it has spark and injector pulse is too short . when put my scope and check cam signal , i saw this .
what do you think guys ? it dosen`t look like a tipical cam signal

Can you capture it together with crank signal? Or disconnect crank position sensor and check this waveform again? Or check if it can run cam only or crank sensor only connected.

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