99LS400BLK

today when i was driving the car shut off on me. when i came to a stop sign the car completely shut off and i had to put it back into park and start the car again. this has happened a few times already. has this ever happen to you guys? what is the problem?

biglexass

yes it happends every time i turn the a/c off and the very next stop it stalls.its a low idle issue.thats all i know.hardly anyone knows why it does this but this problem has been popping up alot more on these 1gens.

CO-LS400

It may be a mass air flow sensor.
If its faulty it can cause the car to stall??

sha4000

iTrader: (1)

the MAF could be the culprit, but you also might need to clean out your throttle body and clean out your fuel injectors. i would recommend a complete tune-up

GRAND_LS 4

iTrader: (2)

I would get some Throttle body cleaner, adn clean the MAF, and the TB... should notice things smooth out a bit.

ychachad

distributor could be going as well. check dist rotors, if they are corroded then their resistance buildup will be very high. As temps increase, resistance goes up even further. As you slow down, there is just not enough current flowing through to the plugs to keep her going. Hence she dies. Another classis sign would be, when she is at operating temp, if you give her full gas, she hesitates a bit and then takes off.
Also check your spark plugs for fouling/wear, cracked insulation, and change spark plug wires.

lexusnutt

Major thread on this issue at the "other Lexus site"

http://us.lexusownersclub.com/forums...howtopic=15699

601LEXTACY

YO. i had the problem. Ignition coils is the key. I gaurantee.