Thread: Any Newbie to GTP tuning tips, as far as what NOT to do??

Originally Posted by 98ctd

Can you shut off all the evap codes? Just to make it run that monitor? I know on my 04 it wouldn't run the cat monitor when I installed the non foulers on the rear 02 sensor. I drove it thru at least 15 drive cycles and 400 miles. When I shut off the P0420 code with HPT and reflashed it that monitor was run instantly. They won't run the evap monitor if the cat monitor has ran.

I am not sure. I only have a week left to get it tested, so I need to figure something out quick.

I am going to start by finding the darn EVAP hose, since it obviously isn't where it is supposed to be...

If I could shut off the codes to make it "skip" the EVAP part of it's readiness monitors, I'd do it so it will pass, then I can take some time and actually try to "fix" this thing right.