I'm getting codes 14 and 44 for tps and ignition malfunction. Vehicle will sometimes pop and backfire at idle and sometimes will be fine. Will also pop and backfire under half throttle or more. I have swapped coils, transistor box, tps, new plugs, swapped computers. All parts came off a...

I have a log attached of when its happening. Under half throttle and above it will start popping and backfiring. Boost is set to 15 psi and holds there. No knock. Wideband reads 12:1 even though log shows leaner. First time it happens is 15 seconds into log. Let me know if you can see...

Just got my car up and running and I'm having a bad problem with creep. I just installed a new punishment o2 housing and a tial 38mm MVS wastegate, external dump. I have a 20psi spring in it and it will boost over 35psi by 6500. I tried porting the exhaust housing but it didn't affect it at...

On my 1g my fuel pump comes on and stays on whenever the key is turned to on with the engine off. Not sure what would cause that unless the mpi relay is faulty. Any ideas?