Syxx613

iTrader: (8)

Here is a list of what i can think of that could be causing this problem.. its been going on for a while..

Incorrect PCV system setup. I have no PCV valve.

Leak in the exhaust. my y-pipe is not fully secured to the long tube headers. Could my O2's be picking this up and not letting me go over 3/4 throttle? I have corvette O2's.

One of my spark plug wires rests ever so slightly on the header pipe. Could this cause a problem?

I have a stripped positive battery terminal that sometimes causes my tripometer to be reset randomly.

What i have already checked...

1.) Fuel pressure does not drop off. Pump is good.
2.) MAF is good, i switched with a buddy and problem persists.
3.) Switched out MAP sensor with known good part. Problem persists.

im poor and its pretty damn cold outside which is why some of these easy fixes have yet to be resolved so please save for judgment for someone who wants to hear it lmao. thanks!

El_TransAm98

iTrader: (1)

I had almost same prob when ill wot it just stalls out when I let go it stop and go normal some say it maybe shortciruit in transmission lines or somewhere mite be problem

BLOWNBLUEZ06

iTrader: (17)

Major rule of mine is "fix what you know is wrong and see what you have". Fix your exhaust leaks and battery cable and anything else you see wrong. It would be nice if you could scan the car. An exhaust leak can cause false high fuel trims which will carry over to your wide open throttle fueling. If that exhaust leak is getting to your front 02's, that's a big problem. Also, make sure you don't have any air allowed to enter the motor other than through legitimate avenues (vacuum lines and throttle body). No unmetered air must get into the engine. You can spray carb cleaner or turn on a propane torch with no flame and run the engine and listen for variances in the idle to see if you have a vacuum leak. Read your plugs to see if any stand out.

El_TransAm98

iTrader: (1)

I had almost same prob when ill wot it just stalls out when I let go it stop and go normal some say it maybe shortciruit in transmission lines or somewhere mite be problem

GothMetalForever

iTrader: (7)

Last time an F-Body stalled on me like that, there was a crack in one of my ignition coils and water was seeping in and shorting it out..

ZERO

iTrader: (23)

Does it shut off and backfire once u hit 5500 or 6000 rpms? IF so check your crank sensor and the wiring for the sensor.
If you replace the sensor make sure u get a crank sensor relearn. Hope this helps..