i have a 99 gtp and it resets itself after i change the oil
how to reset fuel pump,on Pontiac grand prix GTP
the GTP model has the supercharged engine in it
The GTP is supercharged and the the GT is just the 3800 engine without a supercharger
An engine compression test on a 99 Grand Prix GTP can cost $180
you gotta go to a GM for that
Just disconnect the battery terminals for a couple of minutes then reconnect them.
hold the reset button under the dash on the drivers side kind of by the pedals look up
With a scan tool.