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The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the p0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). The code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for, an oxygen sensor is not reading (functioning) properly, the engine coolant temperature sensor is not working properly, damaged or leaking exhaust manifold/catalytic converter/exhaust pipe, retarded spark timing, the oxygen sensors in front and behing the converter are reporting too similar of readings
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What code is p0441 for a 1996 Lexus es300?
Trouble code P0441 means: Evaporative Emission System Incorrect Purge Flow
What does p0125 error code mean on 1996 Lexus es300?
Trouble code P0125 means:Insufficent coolant temperature for closed loop fuel control
How do you find the 3 digit security code for a 1996 Lexus ES300 radio with CD changer?
If the code is not in the owner's manual then call the nearest dealer and tell them the VIN #. They can trace it.
Why is the check light on in 1996 Lexus es300?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
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If the code is P0773, it should be located in the transaxle......according to the manual. You have to drop the oil pan and then you have access to the solenoid.
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You need to a new oxygen sensor if you are getting a p1155 code on a 1998 Lexus. This means that heater circuit is malfunctioning.
What does a code P0441 mean on 2000 Lexus ES300?
Trouble code P0441 means: Evaporative Emission System Incorrect Purge Flow
What does error code P0302 for the check engine light mean in Lexus es300?
Number 2 cylinder is misfiring.
Obd ii code p0135 on 94 Lexus ES300?
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What number is 1993 Lexus es300 audio system security code?
94.9 then you will see the security light on wait about 30 sec's it will start to blink then its on.
Why does the check engine light still come on even after you changed the O2 sensor and reset the check engine light on a 1996 Lexus ES300?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Where is the plug in for the code reader on a 1993 Lexus es300?
under the hood the cap will say diagnosis. and its a specialized plug. youll need a Toyota obd1 connector
