Originally Posted by
WINGNUT-
After resetting a trouble code how long should it take for all of the system monitors to reset?
That's hard to say - depends on the weather and how you drive.
Originally Posted by
WINGNUT-
The catalyst and evap monitors have not reset after 150+ miles of driving with at least a 3/4 tank of gas. My truck will not pass the scanner test for NY state inspection until one more monitor is set.
For the EVAP monitor to run the fuel tank must be > quarter tank and < three quarter tank, a six hour cold soak, and the ambient temp (infered from the IAT) between 40* and 100*.)
For the Cat monitor to run the vehicle needs to be driven at a steady state speed between 1000-1200 rpm, 1200-1500 rpm, and 1000-1600 rpm, with coolant temp above 170*, IAT above 20*, and no EGR faults.
(Since NYS allows one monitor incomplete on a 2001, if you have a known EVAP fault, keep the fuel tank above 3/4 to keep the EVAP monitor from running, forcing the Cat Monitor to run, and then getting it inspected.)
