Cranks but No spark
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: Cranks but No spark (Arm-LT1)
Is there any documentation or website to show me how to do that?
However, a logic probe, that you can buy at Radio Shack, can probably be used to detect if the pulses are missing.
With an oscilloscope, you can determine the timing and duration of the pulses. With a logic probe, you can only determine if pulses is present. My guess is you don't have any pulses at all.
Tom Piper
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: Cranks but No spark (Tom Piper)
One other thought comes to mind here:
If I remember correctly, there is a data output for the low-res and high-res pulse that you can read on a scan-tool. I've never paid much attention to these readings, other than they jump all over the place.
If either of these readings were zero (especially the low -res pulse) when cranking the engine, that may very well be an indication that they don't exist.
Tom Piper
If I remember correctly, there is a data output for the low-res and high-res pulse that you can read on a scan-tool. I've never paid much attention to these readings, other than they jump all over the place.
If either of these readings were zero (especially the low -res pulse) when cranking the engine, that may very well be an indication that they don't exist.
Tom Piper
