kelvin6

So let me make sure I know what i'm about to attempt: Push this plunger in? http://us.lexusownersclub.com/forums/index...ost&id=2853 Spray carb cleaner into the hole at the throttle body, and remove the vac line on the right (on the throttle body) of the picture? If this is correct, then I will give it a go.

Thanks! I looked it up, and does anyone have any recommendations on how to get those four screws off? I'm thinking of a offset screwdriver...

Well I joined this forum to repair my co-worker's 98 ES 300. His car is having a bizzare idle problem, when the car first starts up, it idles at 1600RPM (cold), then after a few minutes of just sitting there (it drops down to 800 and even dips to 500RPM!). The idle speed varies so much, its annoying and even at the really low idle, it causes the whole car to shudder and shake. I've noticed that his idle while driving and coming to a stop is less than 600... which is clearly not normal. I've also pulled two codes from the OBDII port, P0171 and P0125. One of the codes pertains to the car running lean, which could be MAF sensor related... So my question is: Can the MAF affect idle like this? Also, on cleaning the MAF sensor, is there anything I should know about, aside from the obvious (because I don't normally repair japanese cars...). BTW what is the normal idle speed? I couldn't find this on any label or marking under the hood... Thanks! PS. sorry for the last question, but I also noticed his upper passenger side engine mount is cracking? Does anyone know where I can purchase this part (besides the dealer)?