I appreciate the feedback, from everyone. I apologize for not being specific about the propane only working with the fuel enabled, and I have learned that a gas analyzer is a priceless tool through this process Can't help but feeling a little defeated though.

Sorry, John. I guess the person on PICO library labeled their waveform improperly. I'll re-categorize my post I searched the vin and it showed up LEA and figured I hit the nail on the head. Instead it's left me scratching my head.

I'll post a compression waveform with injection/spark timing later today and see what you guys think about it.

Aaron Murphy
Technician
Buddy's Service Center
Jonesboro, Georgia, USA