i just did a timing belt and head gasket on a 2.8l avant.
it ran before i did this.
i got it all back together today and cleared all the fault codes. none popped back up.
i did a TBA and it went through well and it still idled funny and no throttle response after.
i was holding the gas to the floor and it started to idle better. then there was a loud bang twice and then it just jumped up to red line and then shut off...
any input please help.