xrayman Posted November 13, 2004 Share Posted November 13, 2004 I have a '01 rx 300 with 98k miles.when i first start the car it will start ok but will not idle and it will die. if i start it and rev the engine to about 2k rpm's for a about a minute it will then work ok.it will do this with the engine hot and cold and not all the time. i changed the spark plugs and air filter and put the obd 11 diag tool on it but no codes came up. any suggestions? Quote Link to comment Share on other sites More sharing options...
ColinBarber Posted November 13, 2004 Share Posted November 13, 2004 could try cleaning the MAF sensor and the throttle body Quote Link to comment Share on other sites More sharing options...
SKperformance Posted November 14, 2004 Share Posted November 14, 2004 it is your iacv, do a search in the ES forum for pics and how to fix. Common problem and guarnteed to be yours Quote Link to comment Share on other sites More sharing options...
OCNLVR Posted November 15, 2004 Share Posted November 15, 2004 I had similar problem at one point with my 2000 RX 300 model with 65,000 miles. I used some Techron additive about every 1000 miles and that took care of it. If Techron is too expensive for you, I had used Lucas fuel injector cleaner with good results also. Currently I am doing Auto-Rx cleaning in my RX and has not had a problem in the last 2000 miles. Hope this helps. Quote Link to comment Share on other sites More sharing options...
bugman72 Posted November 15, 2004 Share Posted November 15, 2004 try cleaning your throttle body using a good fuel injection cleaner. i also agree with the others about using good fuel cleaner in you gas. good luck from the bug man Quote Link to comment Share on other sites More sharing options...
JeanMarie Posted November 15, 2004 Share Posted November 15, 2004 I just had this problem resolved 3 weeks ago....the same problem started around 105,000 miles and was okay until about 120,000 miles...then revving the engine, etc. didn't work any more. I had to have the idler motor arm replaced. A few hours in the shop at the dealer, and about $300....all is a.o.k. now. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted November 15, 2004 Share Posted November 15, 2004 ^^^ called an iacv Quote Link to comment Share on other sites More sharing options...
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