Wiring/Ignition/Fuel Problem PLEASE HELP

[1997turbodsm]

OK here's the details on the car. It's a 1990 Eagle Talon AWD. The car is Mostly Factory. It has a 91 computer, coil pack, transistor pack, and gauge cluster in it. The guy before me put those in there. The problem with the car. At around 3k rpm in neutral just reving the motor it seems to have a MISS. When you drive the car it feels like it doesn't have any spark when you go WOT in 1st and 2nd and sometimes 3rd. The motor starts to die down. Unless you come off the thottle then EASE back on. once the car actually boost the 10psi on the 14b it pulls good. I need to find out what would cause it to die down. I know the cars running rich due to the spark plugs. I've changed the following on the car with the same thing(stock parts). Fuel pump, Injectors, Fuel pressure regulator, coil pack, transistor pack, o2 sensor, i've tested the wires on the car, changed plugs, Did a compression test on the motor. 170 in all 4.

Also if you unplug the Mass Air flow sensor it does nothing different to car. Runs exactly the same. You can rev it and all. Do you think it could be the computer gone bad or the MAF. Any help would be appreciated.

Thanks

 

[1997turbodsm]

anyone....

 

[assault187]

If you drove the car with the MAF unplugged and it drove the same... Swap the MAF

 

[1997turbodsm]

yeah looking for one around town. If that dont fix it i guess it's the ecu. maybe i'll convert it back to a 90 ecu. or double check the wiring.

 

[1997turbodsm]

yes this problem has me stumped also...

 

[phat87mazdarx7]

I have one that has a very similar problem. is a 90 gs-turbo and I was told its got a newer lower mile motor(not sure on years or ecu stuff, I didn't do any of it). what mine does is with the MAF unplugged it runs ok but sputters like yours around 3k and it dies off too, and also my tack goes crazy once in a while. but with the maf plugged up it it runs much better but its hits a rev limiter at 2k but if you stay in the gas in the first few seconds of running and keep it above 2k its nasty but as soon as it goes under 2k you the rev limiter is back so you have to turn it off and start it back up. the car has no radio and if the ecu is the computer in that hole its new(its got a sticker on it from some reman company).