Dolomite360

the check engine light just came on in my 94 GS300. . .I just left my gas cap at the station like a week ago and haven't had a chance 2 hit seattle for a new one, could that have triggered it off because that did it in one of my friends car. . .I doubt it. . .anyways. . .I only got 72K miles. . .anyone got any ideas?

DevilDog

Have someone pull the codes. On your model lexus the missing gas cap should not have turned the check engine light on.

Dolomite360

just got it checked. . .no loose hoses or anything and the engine is running smooth. . .It was just a local mechanic and he thought it might be my O2 sensor, the thing that tells the engine whether 2 run lean or rich on gas. . .and now that i think of it my mileage the last few weeks has been lower then normal, i thought it was time for a tune up or something but maybe its that sensor. . .I'm gonna get the diagnostics and we'll see what happens. . .peace

The Ikon

Hey guy,

My wife's cousin's ES300 '94 has that same problem , he was told it was a sensor on his car. Good luck.