run time problem
Thread Starter
Driver School Candidate
Joined: Jun 2013
Posts: 6
Likes: 0
From: KS
run time problem
1999 RX300. Starts and runs fine until I hit about 3200-3500RPM, then it putters and looses power. I have cleaned the MAF, new air filter, checked/replace some small vacuum hoses but it didn't help. Don't think its an ignition problem since it runs okay up to 3500 RPM. Is there anything else a shade tree mechanic like myself can check? Help! and thanks.
Lexus Champion
Joined: Feb 2008
Posts: 1,709
Likes: 16
From: Ca.
Have you disconnected the battery for about 5 minutes to reset the computer? I don't know if that will do it or not but it's cheap (cost $0.00 and about 5 minutes of your time) and many times cures problems that otherwise have you chasing yoiur tail. Just like shutting down and rebooting your computer.
Thread Starter
Driver School Candidate
Joined: Jun 2013
Posts: 6
Likes: 0
From: KS
Tried the battery disconnect and cleaned the MAF again. Car runs great and I can run up to 5000-6000 rpm with no missing for the first 3-4 minutes. Then when the engine heats up, I can't go beyond 3200-3500 without misfiring and losing power. It runs and start so well, but after several minutes I can't rev up the engine without sputtering. Any more ideas? Thanks.
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