vheuser
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I'm having same problem too. On cold start, idle speed is very low or won't run at all without pushing on the accelerator. After warm-up it is ok for the day. Will clean valve and see what happens.
JetPilot
Clean the Valva and it should solve the problem.
Take off the air filter box lid.
Remove the air filter box along with the filter.
Remove air hose which is attached to intake / throttle body.
Remove th valve....note..the phillips head screws are easy to strip so make sure you have the proper size phillips head screw driver.
Clean enitre valve thoroughly with throttle body / carb cleaner.
Re-assemble, and this should help eliminate the problem. If not, check for fouled plugs, stretched line from accelerator to throttle control, or fouled coils.
Thanks, I did as instructed and now works better than it has in 50k miles. The vehicle now has 167k on it.
Step By Step Instructions For Iacv(idle Air Control Valve)/isc/throttl
in 99 - 03 Lexus RX300
Posted
This description was awesome. The vehicle now works better than the last 50k miles. It now has 167k on it.
Thanks again