outcast

i have a stock 01 gt and i installed a mac pro chamber and the car ran great for about 100 miles and now the car is running ****ty, the engine is shaking alittle and i hear popping out the tail pipes, is this because i didn't install the mil eliminator's?

1999 GT

if it's an o/r prochamber then yea, that could be causing your problem. when u have an o/r midpipe the 02 sensors throw a code because they aren't recognizing the rear cats. this could cause you car to run lean, therefore your cars ecu will dump a **** load of fuel into the motor because it thinks the car is running lean (which it could be) and it will actually be running rich because of this and cause the car to run like crap. but just do yourself a favor and buy mil's

outcast

today a friend of mine did something with a computer and told me my # 5 coil needs to be changed, so i changed it and the car was all good for about 5 minutes and then started doing the same thing again.

cliffyk

The rear O2 sensors have NOTHING to do with engine control, all they do is monitor the efficiency of the catalytic converters...

CAMDUP

have your friend scan it again and see if its #5 again

Soldier GT

I thought about buying mils but was informed that the mils would be a short time fix. I spent the extra hundred bucks and bought a tuner. Haven't had any issues what so ever...

outcast

my friend is going to scan the car again tomorrow night i will let you no what happens.

outcast

soldier gt were can i get a tuner for $160?

jagass

Maybe that's the reason...lol