I have a 1987 Ford escort wagon, 1.9L CFI Throttle body fuel system. My problem is that at about 1800-2500 rpm, my injector is dumping so much fuel that my car stalls. Any rpm higher or lower than that, it seems to run fine. I have replaced all of the fuel system components( fuel pump, fuel filter, fuel injector, etc), but still have not cured the problem. If anyone has experienced this problem, and can tell me what to do, please respond to this message? Thank you for your advice!

I have a 1987 Ford escort wagon, 1.9L CFI Throttle body fuel system. My problem is that at about 1800-2500 rpm, my injector is dumping so much fuel that my car stalls. Any rpm higher or lower than that, it seems to run fine. I have replaced all of the fuel system components( fuel pump, fuel filter, fuel injector, etc), but still have not cured the problem. If anyone has experienced this problem, and can tell me what to do, please respond to this message? Thank you for your advice!

Jason,
The throttle position sensor, mounted to the throttle shaft on the side of the fuel charging assy. could be causing the problem. The sensor sends a signal (variable voltage) to the EEC processor that varies with throttle position. The processor reads the signal and determines whether the throttle is closed, part or full open. The processor uses the information to regulate fuel mixture, ignition timing, and EGR flow. With the ignition key "on" (engine not running) You can backprobe between the black wire (-) and the center wire of the sensor connector with a VOM. While backprobing move the throttle slowly from idle to full throttle and watch the signal voltage. It should be smooth, if it isn't, the sensor is bad.
Hope this helps.
Alvin

It's not a big issue, but what about the fuel regulator? It's minor, but it helps. If it's locking things shut, or the return line is plugged, then you'll squirt a lot of fuel into the cylinder. It's a shot in the dark, but it could be. My fuel lines were gross when I got my car. I had to flush/blow them out.