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Fluctuating idle on a 1992 Lexus LS400 can be caused by several factors, including a vacuum leak, which disrupts the air-fuel mixture, or a malfunctioning idle air control valve (IAC), affecting engine idle speed. Additionally, dirty fuel injectors or a clogged air filter can impede airflow and fuel delivery, leading to instability. Faulty sensors, such as the throttle position sensor (TPS) or mass airflow sensor (MAF), may also contribute to erratic idle behavior. Regular maintenance and diagnostic checks can help identify and resolve these issues.
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What is the purpose of cold start valve on 1992 Lexus LS400?
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Causes for loss of power steering on 1991 Lexus LS400?
1992 Lexus ls400 no power steering replaced power steering rack because it was leaking but it had p/s.thought it was the rack so replaced agin no luck,replaced the p/s pump still no p/s.
What is the location of the starter in a 1992 Lexus ls 400?
The starter for a 1992 Lexus Ls400 is located under the upper intake manifold beneath the car. To access the starter you will need to first remove the manifold.
Where is the air ride pump in a 1992 Lexus ls400?
The air pump on the 1992 Lexus LS400 is located on the passenger side front of the engine compartment under the air filter housing. You also have to remove the right front tire and plastic wheel well inner cover to get to it and the valve for the front shocks.
Step by step Instruction on removal and replace of a break power booster on 1992 Lexus ls400?
sorry I'm not sure how
How do you replace headlamps on a 1992 Lexus ls400?
Go to the library and look up the automobile and you will find the instructions in the book or ask for instructions on computer
Will a 1992 Lexus ls400 instrument cluster fit into a 1993 Lexus ls 400?
Answer is No, I just tried having a 92 and 93 ls 400. Plugs are different and dash config is different.
Where is the fuel cutoff switch on a 1992 Lexus Ls400?
The car was hit in the rear and now it won't start. I was thinking that it has a fuel cutoff switch but I do not have the owners manual.
What is the mostly cause of your 1992 Lexus LS400 showing a track off and check engine lights on dash?
I have heard a few different things mentioned. Check on lexusownersclub and post it in the LS400/430 catagory. A very good specialty site. vbd
How do you reset the computer on a 1992 Lexus ls400?
To reset the computer on a 1992 Lexus LS400, disconnect the negative battery terminal and leave it disconnected for about 10-15 minutes. This will allow the onboard computer to clear any stored trouble codes and reset the system. After waiting, reconnect the negative terminal, and start the vehicle to allow the computer to recalibrate. Make sure to check for any persistent issues that may have caused the need for a reset.
How do you know if you have a bad oxygen on a 1992 Lexus ls400?
To determine if you have a bad oxygen sensor on a 1992 Lexus LS400, you can look for symptoms such as poor fuel efficiency, rough idling, or a check engine light. Additionally, you can use an OBD-I scanner to check for trouble codes related to the oxygen sensor. If the sensor is malfunctioning, it may also show fluctuating voltage readings when monitored in real-time. It's advisable to replace the sensor if it fails these tests.
How do you replace plugs on 1992 LS400?
you have to remove the distributor covers.
