STA

I got a 98 GT conv and ive been chassing an expensive lean condition on my stang. Ive taken it to four diffrent speed shops and they alltell me the same thing "they cant find it" Ive changed the fuel pump, fuel filter, fuel regulator, and still no progress.what should I do before i just give up.

95 droptop

first off how do you know its lean? what is the car doing to make you think it is acting wrong and what have you replaced, besides ^^^^^

94Blk5.0

If it is throwing a CEL light that reads "Lean Condtion" you might need to geta programmer than you can adjust fuel curves(+2%, +4% etc.). A guy I worked got a CEL for the Lean Condtion after he installed a 75mm T.B/Plenumthen a catted x-pipe on a97 GTthat already had Flowmasters. You have a chip, but is it is a genric tune, or custom burned, on this car or a different GT? In the mean time try running come fuel injector cleaner, andreinstalling the factorystock MAF senor. Also make sure the MAF senor itself(the wire) is clean. If there is nothing wrong with the car, you might just need a dyno tune or programmer. Or replace some aftermarket intake/exhaust parts with the factory stuff, but thats no fun.

buckshot

check for a leak in the intake after the maf, a friends explorer did that, a little ductape and it was all fixed