2001 Toyota 4Runner Q&A
2001 Toyota 4Runner Question: check engine light on
With Toyota/Lexus stability control light and Check Engine light often come on together (depending on the code stored) . A scan tool is required to diagnose the problem .A scan tool is attached to a 16 pin under the dash, the computer in your car stores in its memory what it sees as being the problem with your car. Any auto repair shop or Toyota dealer will have the scan tool needed to diagnose the problem. Fixing the Check Engine light problem will usually "fix" the VSC code as well. - patrick mannion
The most likely culprit: the VSV valve located on the charcoal canister is sticking, just above the spare tire. Its a real pain to get to, especially if the little screw is rusted. A new vsv will run between $40 and $120. P/n is 90910-12198. Just replaced mine, and it fixed the P0446 code. - Visitor
While driving 60mph, my check engine , vsc trac, and vsc off lights came on at the same time. Any ideas?
after an oil change how do you reset the check engine light?
Check engine light was on so I had it hooked to an engine code analyzer and it indicated the throttle position sensor was the problem. Replaced the sensor with no improvement? Any suggestions?