1997 Lexus LS 400 - Answered Questions & Fixed issues

Question edited for clarity, full 'year MAKE model'. Question moved to Year Model category. You can't! You have to fix the problem not find a way around it. You have a Lexus not an 1981 Chrysler. I have an ES330. Your antitheft system is protecting your vehicle to stop precisely what you are trying to do, drive the car without the correct credentials. You have a transponder chip in the key, a receiver in the steering column, alarm sensors, the antitheft module, the Body Control Module, the Engine Control Module, and all the break-in sensors on hood, trunk, doors, and inside the vehicle all protecting you against theft. You need an auto electrician, the dealership, or an auto locksmith / alarm installer with a pro grade scan tool computer to check the system and find out why it isn't working. If you lost all three keys, the dealership can make a key based on the VIN Number. Get one and then get the auto locksmith to make another and program both. https://www.google.com/search?q=auto+electrician+near+me

you dont

It may be in the same location as earlier models http://www.lexls.com/tutorials/EFI/fuelfilter.html

po400 is=egr valve system, exhaust flow malfuncion. Hope this helps. God-Bless!

Put your hand in your pocket & buy a manual, sponger

I found one write up about this, they did it through the fender well by removing the liner, that is all I can locate on the subject.

Your mechanic is the best person to ask. I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

Test battery with load tester. Check for electrical short.

replace the bearing in the idler pulley

There could be a number of things wrong. It could be your battery is dead. or the starter has gone bad. or the ignition electric box which the key moves could be bad. It is kind of hard not being there.

Good chance it is your alternator.

Forgot a wire that hooks to either ground or positive terminals. might have dropped out of site while swapping out batteries.

is it connected properly? if so check your fuses and see what is blown.

Other than getting a locksmith, you may have to remove the door panel and take the lock out from the inside. Then replace it or remove the broken key. Hope this helps.

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It's either connected direct or the fan speeds are not working exept on higth and to start with is try cleaning with higth pressure water the condenser and radiator hope that will help good luck

There is a short somewhere in your electric lines for either your brake lights or your antilock brakes. Cant be sure where without looking at the car. Your gonna have to take it in the shop.

have a compression test done as I suspect a head gasket or cracked head

It sounds like maybe your I.A.C. (Idle Air Controll) valve is stuck or gummed up. Try cleaning it and check for vaccume leaks.

A mechanic would use starting fluid to suppliment the fuel supply. Then check for fuel pressure with a gauge. It could be the pump relay among other things.