most likely the maf sensor.. if you can get to use a scan tool.. run codes and see what you come up with now.. then i would monitor pid data watch your long term and short term fuel trims and maf and baro readings..
baro readings can be usfull.. if you see it rapidly changing and your not in the eye of a hurricane then you know there is a problem in the maf..
the LT fuel trims are the amount in percentage that the pcm is adding or subtracting from the base fuel map.. anything over 25 percent either way will set rich or lean codes..
the maf volatage pid sound read about .9X at idle
see if you can get this info and respond back..
baro readings can be usfull.. if you see it rapidly changing and your not in the eye of a hurricane then you know there is a problem in the maf..
the LT fuel trims are the amount in percentage that the pcm is adding or subtracting from the base fuel map.. anything over 25 percent either way will set rich or lean codes..
the maf volatage pid sound read about .9X at idle
see if you can get this info and respond back..
Why not try cleaning the MAF. Instructions at www.bullittarchive.com... Don't cost nothin to try it...
You can test your MAF sensor with a digital volt meter. With the engine running test the red [pwr]wire and the black[labeled A and B on the sensor connector], it should read at least 10.5 volts. Then measure between the other 2 wires[C and D], it should read between .34-1.96 volts. It's not the most accurate way of testing but it should give you a good idea. The best way is to test the voltage between C and D while the car is moving, but you'd have to hook up long lead wires to the DVOM meter and moniter the voltage as you're driving but that can be tricky to do .You can also unplug the sub connector instead of probing the wires and test the voltage there.It's mounted on the back of the shock tower shock on the firewall side. The wires should be red,black and white w/black stripe and yellow w/white stripe.