Idle control
 

Hi.

I'm new around here but have owned my rx since 2003.
I'm needing a little advice. 2000 rx300 150k miles. Over the last couple of years we've had to clean the idle control valve a few times to fix low cold idle and all has been good for 6 months each time. The last time the clean didn't work so we went on Ebay and bought a new idle control valve and fitted it. With the new valve to car idled at 2000 rpm ! So I thought faulty cheap part and ordered another one from a different seller.



Put original part on and it doesn't tick over when cold. 2nd new one arrives so we fit that one and idle is back upto 2000rpm. Cant find any air leaks.

Any suggestions ? Does anything need relearning when fitting this valve?



Thanks in advance for any help / advise

Yes there is re-learning, you just let it idle and warm up.
I would only clean my old one or purchase a new one from authorized dealer.

Salim

Which fuse is the ECU fuse? I'll check my service manual when I have a chance, but I just wanted it documented here in the post in case other users don't have a service manual. I can't remember if the fuse lid actually has the names or numbers to refer to in the manual.