GM Repair Problems? Ask GM Repair Expert Now.
I am sorry for the long wait
it will do this when driving down the road ?
or only in park and neutral ?
any idea what the fuel pressure is when it is doing this ?
was it doing this before all that work was done ?
there is no time limit on this question
connect a fuel pressure gauge to the test port on the fuel rail end right behind the power steering pump and see what the fuel pressure is key ON engine OFF and also when its acting up
any access to a scan tool to see live computer data ?
since the fuel pressure is good and the exhaust is not plugged up and the rev limiter is seeming to kick in which it should only in park and neutral i am curious if the computer is seeing the car in drive when it is in drive
if the computer see's neutral or park when it is in drive then that is our problem
but in drive it should not kick in and the rev limiter is built into the computer
if the computer is showing drive when in drive and the rev limiter is hitting there has to be a programming or internal computer failure happening to this car
monitoring live computer data see if the live data matches the gear selection
if it does match try to have the computer re programmed if it still does this replace the computer