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No closer at all. GM sent an engineer to the dealership and a day was spent on diagnostics. Still no root cause. The next step is GM will put their datalogger on the car before the next track day, March 20,21 at VIR. That track has long straights and the problem appears at the end of the two big straights.
will keep you posted
I think if you watch Matt’s videos he has a great series on diagnosing ignition systems and has a great presentation on 2-wire systems, which you have. I think Matt even goes through setting up with a Vantage Pro, including scope settings. Basically one wire is +12V, the other signal. You can find the 12V back-probing KOEO.
I have a Vantage Pro myself and I have a love-hate relationship with it. As a graphing meter and guidance on sensor level testing: love (except that it does not have all sensors, like SWPS for Corvettes!!!) Scope features: HATE! the screen is small, low resolution, and I find the Y and N buttons very trifling. Also, using aftermarket probes like PICO clamp-ons; not useful to me at my point in my knowledge base. I spent way too much time trying different scope settings only to push the “N” button at the wrong time and back the scope to the opening dialog box.
Snap-On is not a hobbyist’s supplier. Everything you need from them costs a king’s ransom.
i recently purchased the proline VCI with the enhanced GM package. i bought the wi-fi capability. The proline “dongle” with wi-fi, and the gm enhanced was about $530 USD.
The scantool plugin came with a long USB cable, and the device works great both wired and wi-fi, no problem at all. Once I got past the learning curve, I use it exclusively with the wi-fi.
If you go to their website, and just call them up, they can help you a lot in your purchase decision. When I called, I was trying to decide. I threw them a few questions I considered hard and they answered completely. I made the purchase on that call. They also will help a lot after the purchase, either phone or email. Their email response is about an hour during their working hours.
If you are a hobbyist like me, you are unlikely to buy more than one scan tool brand. Each one you buy will have a learning curve. After a scan tool you’re hooked on thinking about diagnosis differently. Thanks to Matt and others, you can learn a lot, if you just listen. The slope does get slippery. Your next purchase will probably be a lab scope.
The enhanced packages are very useful. If you are a pro and need several enhanced packages. AutoEnginuity may have a package deal for several enhaned packages that is not published. After all they have to compete with other brands name scan tools.
