rdpa

I have a 1994 LS400. I am looking for the oxygen sensors. I found one between the manifold and the catalytic converter. It was under the driver's seat and I had to lift the carpet to get to the connection. This one has blue and white wiring. Help!!!

When I try to retrieve a diagnostic code it says that my diagnostics system is off. My car is stalling, but I can't retrieve a diagnostic code. I have done it before, but now it is saying it is off. How do I turn it on???? rdpa

It was as stated, under the car, driver's side, rear seat, and covered by a thin plate. Never would have found it on my own.

I have a 1994 Lexus LS400 and I am unable to locate the fuel filter. I removed the air filter, etc., and still can't find it! Help! Where is it? rdpa