so yea just bought a rx7 it runs great wont idel right just wants to die and back fire at low rpms high rpms rund great what could it be i thought the cats where pluged but they have been punched out could there be anything else only thing i can think of is timeing is of or bad plugs it just had a tune up

 

Check the TPS.
http://howto.globalvicinity.com/gv_w...i=58&co=1&vi=1

 

i tried adjusting my tps with this yesterday, and when i started up the car and it warmed up it had a significant bounce in the idle.

i adjusted it so it wouldnt do that. i just need to do more fine tuning on it.

 

I was told (by Racing Beat) that you have to adjust it after the car has reached operating temp, but while its not running. That's how I've always done it and my car runs fine.