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1993 Lexus LS 400

Tiny
JAYOVELLI
  • MEMBER
  • 1993 LEXUS LS 400
  • V8
  • 2WD
  • AUTOMATIC
  • 17,500 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
Monday, August 9th, 2010 AT 10:21 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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Monday, August 9th, 2010 AT 10:49 PM

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