Discussion Starter · #1 ·
Hey guys how are you doing? This my first thread and is not about my car, my girlfriend has a 1994 mustang gt, the car is pretty nice and works pretty good on idle, the problem is when the car is running around 50-55 miles it starts to hesitate. After a while the check engine turns on. The car has 24 lb injectors, cobra intake, c&l maf, 70mm throttle body, new fuel pump, fuel regulator and gauge, gears and they swap the transmision to an auto. We bought a scanner to read the codes and it says that the car is running lean, gives a code for the o2 sensors and egr valve as well. She has already changed all sensors, maf, air temp., oxygen sensors, distributor, cap and rotor, module, coil, spark plugs and wires, and the last thing was the egr valve. We are just desperate and ran out of ideas, help please. Thanks!