so my car has 83xxx on it and have had it for about 2 years. car was bone stock when i bought it. After doing a clutch job i purchased a racing beat header.

currently its running racing beat header and test pipe.
air pump deleted and blocked.
EGR blocked
rats nest deleted
but still have the thermowax on the tb (havent had time to do the tb mod)

anyways now the car runs good when under load but on one rotor when coasting with constant throttle pressure.

Basically engine is either coasting (downshift), running on one rotor, or two rotors (under load).

Also its started to flood when warm and backfires when cold.

im pretty certain that my engines tired and about done but i was hoping it may be trailing coils or something stupid or maybe the reduced back pressure.. any ideas?!

 

^^^^ THIS was a TPS issue with my car. When I spec'ed it out, it was bad... got another one, set it, and poof... back to perfect.

 

reeeeaaaaaalllllyyyy because my car also idle surges until its warm too which i figured was a TPS issue too

 

then this sounds like a good place to start!