rselby

I have a 07 is350 stock...I get in push the brake, the start button lights up green..then while Im still holding the brake I press the start button, car starts, but just for a split second...then shuts off...this is the second time this has happened in a couple of weeks...anyone got any ideas to why this is doing this...

cjlazar84

check the sensor on your intake. make sure it is properly fit into place. i know that my sensor was unhooked and i had the same issue. other than that. just take it to lexus if you have warranty

rselby

ok...do you mean the mass air senso?...havent even messed with anything under the hood yet...but hey ..Ill look anyway! thanks

KvnChu

iTrader: (5)

not sure it is the sensor...i could start my car fine with the sensor unhooked, vsc light just lights up... maybe its the battery?

jnguyen87

iTrader: (2)

are you holding down the button when you press it? i ran into this too..then i figured i was holding down the button too long..

rselby

maybe so...I will pay more attention to how long I hold it down...if thats it I will feel like such a dumb ***...LOL...battery is ok..not draggin on any starts...just started it up a min ago and its fine..dosent do it all the time ..just sometimes..but will watch how long Im holding down the start button

eric_r_ho

iTrader: (9)

It's not so much as you holding down the START button long enough it's moreso you holding down the BRAKE PEDAL longer..sometimes my car will do it but it's because I let my foot off the brake too quickly..so check that too.

2slow

iTrader: (5)

Can't be the battery if the car cranks and starts.

Keep you foot on the brake a bit longer like eric said. That might be it.

Bichon

+2. If you take your foot off the brake just as the engine starts, it results in a stall.

chris07is

iTrader: (10)

+1 what he said ^^^^^

boostfiend

I hope that's the problem because i have been having the same issue

boostfiend

Same year and model

slimjimtel

+1 on the brake pedal. Also if you let the button go too soon it can stall as well.

Samieee

iTrader: (1)

You don't have to hold the button. Just hold the brake pedal

ibidu1

iTrader: (1)

Could be a bad ignition switch. Is it pulling up any CEL codes?