Mechanics

LEXUS LS 400 SENSOR PROBLEM

1993 Lexus LS 400

Engine Performance problem
1993 Lexus LS 400 V8 Two Wheel Drive Automatic 175, 00 miles

I have 93 lexus ls400 car will take throttle slowl but wen u give it full throttle it surges it will surge until u get off throttle long as u dont give it full throttle its ok. Im thinkn converters r stopped up
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Jayovelli
August 9, 2010.



Lack of acceleration, chugging, hesitating, bogging, misfiring etc. Could be caused by one of the following below: Check and test all the items below-we start here.

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.
False air leakage.
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.

Rasmataz
Aug 9, 2010.