Hey guys, I took some more captures of this car today and I plugged in some numbers that Mick from iATN shared with me. I think there are some variables with the CKP sensor as far as cursor placement, but I haven't done enough of this yet to contribute any more right now. I did pull the valve cover ...

Hey guys, I've been talking to Mick on iATN. I am sorry for posting this question in two different places. I will never do that again. Too hard to keep up. Search iATN forums for this same thread and you will find what he is saying. I am in the process now of putting his numbers into some new pics I...

Darren
No VVT on this.

Alan
Thanks for that video link. You guys are awesome! John Thorton has a DVD on this that I will be buying next week. Why wasn't I doing this type of testing sooner!?
Thanks again friend
Paul

Richard, thank you so much! This has opened a whole new world be for me.
Do you think my captures would have been more clear with the WPS-500?

These are taken during idle using the KPA scale on the PV-350 (1mv=1KPA I think)

Ok, those files didn't show up like I expected. How do I fix that?

Here are some waveforms, let me know what you think. I believe that transducer testing (exhaust/intake compared to compression) is the only way to ID this chain problem on this engine. Ignition timing and cam signal (synthesized) will not change with a jumped chain on this motor, I am convinced of t...

Darren
Would you like me to set up this waveform at idle or during a snap?

Ok guys here is the set up. IT is a 2006 Chevy Malibu with a 2.2 Ecotec engine. These engines are notorious for jumped timing chains. It has all of the symptoms, a rattling noise in the chain area, P0300 misfire code, rough unstable idle with 12 inches of vacuum. I want to verify a jumped chain with...