misskwilli

Hi i have had my rx 300 since february. I got it at a buy here pay here lot so i don't have a warranty. the first time it cut off i had stopped at a stop sign. It starts right back up with no problems.

It started doing it more often and now all the time. When we start the car almost everytime once we put in in drive it cuts off and all the dashboard lights come on. Now it may take 20 times to start it up and it finally run. sometimes it only takes 2 times. Some days it gives us no problems. Some mechanic (street mechanic) said it was tune-up. He changed the spark plugs, pvc valve, and air filter. this was monday we didn't have any problems until yesterday and today and now it is doing the same thing. Does anyone know what this could be?

TunedRX300

Try clean the IACV http://us.lexusownersclub.com/forums...howtopic=30723

Meetya

God! We see this question here at least once a week.
Clean/Replace IACV (Idle Air Control Valve) and MAF (Mass Air Flow) Sensor/Meter.
https://www.clublexus.com/forums/sho...d.php?t=287007

2 Lexmex: Ron, we really need to start working on that FAQ I suggested.

misskwilli

Thank you.

sktn77a

iTrader: (2)

And if neither of these work (been there, done that!) replace the throttle position sensor.