Hey Guys,
Thanks for having this forum.
I searched it and others on the internet and still didn't find an answer for my problem.
Maybe someone in here has a known good answer?
Here's what's going on...
It's a 1998 Chevy Tahoe, 5.7L Vortec, 2wd, 4dr, front & rear A/C.
It has no cats and the EGR...