hey i just bought a 1991 toyota pickup and its having problems.
it idles fine, but i can only give it like 1/4 throttle any more and it bogs and dies, (if i let off quick it will recover). so the plugs/wires/cap/rotor/maf sensor all have been replaced, n e ideas?
also removing the tps connector makes no difference.
Sounds like a bad TPS to me, if it runs the same pluged and unpluged, either a sensor or the circuit, most likely the sensor.
You should check the wiring, should have a 5 volt signal in one if the 3 pins (dont remember which one, check em all), to make sure you have a good circuit, with key on. If you get a signal, replace the TPS since it is the likely culprit.