× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: GM REF HI and EST issue
Posted to Technical Discussion Forum on 10/25/2023 1 Reply

The glitches are not evenly spaced, but they average 3-4 pulses between. There is an exact correlation between the glitch in REF HI (yellow trace) and the corruption of the next EST pulse (green trace). They don't exactly mirror each other, but I wouldn't expe... Login to read more.

1 Replies Received (View Replies)