Well I just put my rebuilt gsr motor back into my car and I have a problem... The car starts and runs but it wont maintain an idle! Like you turn it over and give it gas and it runs but if you let off the gas the rpms die and it cuts out otherwise it runs fine... Any remidies or things to check!?

 

Check the IACV.

Also check o2 sensors.

 

BUMP Thanks for the reply!

 

BUMP!