I have issues I have 94 gt that I converted over to a 5 speed changed heads gt40ps, cam ( e ) and a cobra intake. I also deleted the egr and smog pump as well as cats. Idle sucks and continuis mil. I've heard a little about a tweecer, please help
It's a chip that plugs into the J3 port on your PCM, then connects to your laptop/dekstop via a USB cable, and with the software that comes with it, you can change everything in the factory PCM, i.e.: idle, fan temps, maf curves, injector slopes, fuel tables, spark tables, delete EGR, delete smog etc. etc. It is a must have if you do a h/c/i swap (which you have done) and even more so if you deleted EGR and smog (which you also did). The only other alternative is to get a custom chip burnt, but then you're stuck with that single tune. With the tweecer you can retune it as many times as you want, and it also comes with a switch that lets you have 4 different tunes programmed at any time, and you can switch between those 4 tunes, and the stock one with just a turn of the knob. It's definitely worth it. The R/T (real time) lets you datalog what your computer is doing as it's running and you're driving (if you have a laptop). You can record such information as spark advance, maf volts, tps, load, and a/f ratio if you have a wideband. I love my tweecer and I think it's one of the best things I've bought for the car.
Brand new they run $380 plus shipping (plus tax if you live in Texas) for the base twEECer, or $550 for the R/T plus shipping.
BUT.......... look in the classifieds of stangnet, corral.net, hardcore50 etc. etc., lots of guys sell their's used for cheap. I got my R/T 5 months old used for $425 shipped a few weeks ago.
Go to their website, and download the software first. It's a good idea to get a feel for how the thing works before you drop the money for it. Also, then you'll know the basics and can start tuning right away when you get it.