Geoffasaurus
New Member
I had the same problem with an 88' Chevy Caprice Estate Wagon, tried using the G2P formula, it's crap. Not even worth the time of buying and trying. Like raidmax suggested, i used seafoam too, which helped a little, but i also had to clean out my egr valve. Just pull it off and soak it in gas for a day or so, best way of cleaning it that i came across. With a clean egr, seafoam and an octane booster, i got my smog-monster to pass no problem.