MAB

Hmm lets see you removed the throttle body, removed the ACIS actuator bracket and removed the PCV hose. THEN accessing the spark plugs wasnt very hard!! Point taken. I should have said, if you already have the throttle body removed for other reasons you can easily get two. And, it only takes a few minutes to remove ACIS bracket/PCV valve&hose to get to third. I followed the instructions on this site http://mywebpages.comcast.net/rx300how2/index.html and it worked out fine for me. Took about 1.5 hours total as those back 3 are a bit of a pain. I didn't totally take off the PVC hose, just unplugged it on side that is next to the left side plug. It helped alot as I didn't want to have to remove a whole lotta parts and I didn't have to following these steps. Boy a busy day, cleaning IACV throttle body, spark plug replacement and oil change. Glad to be done.

Thanks TallGuy as well as GoldenStateSilverSport for the great instructions. I did this job today and it was not to hard at all. Only thing I would suggest is the same thing that Tallguy suggested in using the Craftsman “Bolt-Out”-Damaged Bolt/Nut Remover Set part number 9-52161. Made it much easier removing the 3 very tight Phillips head screws that hold the right throttle body in place. I almost gave up until I bought this tool and it took the screws right out. The other 2 screws that hold the black coil to the IAC are a bit smaller than the 3 screws that are holding the right throttle body. I just used needle nose vice grip pliers to loosen 3 of the screws that hold the IAC to the right throttle body and the 4th I was able to get with a tight fitting phillips. Basically these 4 screws and the 2 that hold the the coil to the throttle body are the same size. The 3 that hold the right throttle body are slightly bigger in head diameter and this is were the #4 bolt out tool worked for me. It is to big for the other 6 screws ( 2 that hold black coil and 4 that hold IAC to right throttle body). Also there will be some coolant that leaks out when you take the throttle body out and the 2 hoses that attach to the throttle body. Not enough to worry about though. At least I didn't worry about it. Cleaning was a breeze and don't forget, as most have already stated the small wavy brass washer that sits in between the black coil and the throttle body when you reattach the black coil to the Throttle body. Thanks again. :cries: Now tackling the spark plugs on this beast. front 3 are a breeze the back 3 I'm gonna have to read the forum for suggestions. See ya......

Thanks mehullica. It was as you suggested small rubber hose back below the aircleaner box and by the Brake fluid resevoir. It was indeed disconnected. Thanks again for the help.

I have a 2002 Lexus Rx300 with 72K miles on it and the Check Engine Light (CEL) keeps coming on. The code P0440 which is Evaporative Emission Control error code. I have reseated the gas cap a couple times and cleared the code with my OBD2 code reader and it still keeps coming back. I recently installed a K&N air filter but don't know if that would have caused this problem. Any other suggestion besides replacing the cap which seems to seal good as when I remove it you can hear the pressure release. I did have a couple other codes P0441 and another P044? but those have not come back after clearing the CEL the first time. Thanks......