oops I thought I did upload the psdata. It should be here in this post now.

Hello all. I have a 04 pontiac gto ls1 vin g engine. The questions I have is does anyone have cylinder compression waveforms of ls1 vin g engines. It appears that running compression is a bit too high and the exhaust opening happens too soon. Dont know for sure though. The capture I have is of cylin...

Snap-on's has really good graphing capabilities. you can graph every pid unlike IDS. I believe the Matco Maximus(Launch) can graph all pids too. Autel is cheap and can do things that other aftermarket scanners cant. I demoed a Autel last year, wasn't very impressed by it. A lot of bi directional ite...

Just bought a used 4423 with a bunch of goodies. I was a verus scope user. The difference is like night and day