My 1993 Toyota bogs down or looses power when it is at operating temp.

WILLIECNOTE

MEMBER
1993 TOYOTA CAMRY
135,000 MILES

Okay I am about to loose my mind. My 1993 Toyota camry 4 cylinder has this issue where you will be going along and then it seems to bog down like it is not getting enough fuel. I have changed the fuel filter. I have put a new fuel pump on it. The dealer diagnosed it as needing a distributor, cap, rotor and new wires. I did not want to shell out the $1600 for them to do all this so I got a used distributor, a new coil, wires, cap and rotor. It is still doing it. The dealer said that after market parts can cause this. I do not buy that. It is not the catalytic converter as that was changed too. Any help here would be appreciated. I have also warmed the car up and then unplugged the green sensor that monitors the temp. I was told that it could be bad and tell the car to ease up on the fuel. That did not take care of it.

Thanks

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

https://www.2carpros.com/articles/engine-hesitates

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.