Recent content by Andy0x1

I have "HP Tuners" and have programmed cars with it, I see the Envoy is supported, and I've actually attached it to the OBDII port but it doesn't appear to access that portion of the PCM, and no diagnostic codes show up. I have not checked any schematics. I do have a Beckman multimeter and...

There are no sounds, nor is there any light activity other than the two seconds of illumination at key on. After that the range selector goes dark and stays that way. The only sound that is heard, is that of the fuel prime pump, and the rattily sound of the electronic gauge clusters. When the...

Resurrecting an old thread here. I have an 02 Envoy SLT w/just over 200K miles. I've only owned it for ~500 of those miles. I bought it cheap, with a TON of problems. No Dash lights -> Moved switch from 2H to 4H, and it made a click sound, the lights dimmed, and the Service 4WD light came...