meowmeow

You have to pull the plastic panel about 3x4 inches above your left knee, the obdII connector is there next to the fuses. The round connector below the steering wheel is a lexus specific connector of some type.

But not having a check engine light on suggests there are no codes as you say, unless the light is out itself. Easy test, as the light should come on when you first start then wink out.

I can't even guess what's causing your start 'n stall problem. You must be getting gas or it wouldn't start at all. I would have gone for the same things you did. I do wonder about the cold start injector, which if bad might prvent it from staying "started" when cold.

Hope others have some ideas...

LL

I connected the OBDII reader to the OBDII connector next to the fuse box. However, the OBDII reader gets the error message that it can not connect to the computer. Since it can not even connect to the car's computer, it does not have an error code for me to read. The OBDII reader works fine on other cars so the reader is in working condition.

No codes. I connected a OBDII reader but it can not even connect to the car. The OBDII reader works on other cars.

Two days ago, my 1994 Lexus ES300 stalled immediately after I started it. In my attempts to repair the problem, I have replaced mass air flow sensor, fuel filter, and spark plugs. I have also taken out and cleaned the throttle body as well as the IACV (idle air control valve). However, the car still stalls immediately after start. Even if I start the car with accelerator pedal fully depress, the car would still immediately stalls after starting. In short, my car is currently able to crank and start, but it would immediately stalls afterward.

Anyone have any suggestions as to what the problem might be?

P.S. A couple months ago, I replaced the timing belt and water pump. The car has been driving great until two days ago.