Check Engine/VSC/Trac off light 2004 V8

[yotanoob]

Hey y'all,
Ran into a little problem this morning on my way to work. Was driving down the freeway and my Check Engine, VSC off and Trac off light all came on. Unfortunately when my car got broken into a month ago they stole my OBD2 Scanner :50cal:. So trying to pinpoint the problem before I drive home from work. Yesterday I did a few maintenance related fixes to the truck. Replaced battery with Optima Yellow Top, replaced PCV valve, changed oil used Amsoil 5W30 Full Stnthetic Signature Series with BG MOA. I also added BG 44k Fuel System cleaner to a full 20 Gallon gas tank. The truck runs fine I just would like to keep the mileage as low as possible with the lights on. Has anyone had this issue when changing the PCV valve or changing oil?

The truck is a 2004 V8

 

[VT245]

http://www.toyota-4runner.org/probl...4806-vsc-off-trac-off-check-engine-light.html

I had this issue a few months ago and found this thread. I replaced my gas cap with an OEM cap from my dealer and all the lights went out. Seems like this is a good place to start considering they are pretty inexpensive and do go bad. Mine is an 08 SR5 and had 87000 on it at the time.

 

[yotanoob]

http://www.toyota-4runner.org/probl...4806-vsc-off-trac-off-check-engine-light.html

I had this issue a few months ago and found this thread. I replaced my gas cap with an OEM cap from my dealer and all the lights went out. Seems like this is a good place to start considering they are pretty inexpensive and do go bad. Mine is an 08 SR5 and had 87000 on it at the time.

So replaced my gas cap, replaced S1 B1 and S1 B2 O2 Sensors, cleaned MAF and am now having just the VSC OFF and TRAC OFF lights on. This all came after I plugged in my OBD 2 Reader trying to see if any codes popped.

Any suggestions?

just an FYI My 02 sensors and MAF looked terrible. Also just ordered a AFE Prodry Filter to replace my K&N as well as have a set (8) Denso OEM spark plugs sitting in my garage that are going in this weekend.

 

[2003-4x4runner]

Sounds like your OBD II reader reset your VSC. You may have to do a Zero Point calibration on the truck.
Check the link below for more information.

http://www.toyota-4runner.org/probl...ac-vsc-off-lights-zero-point-calibration.html

 

[RonJR]

This happened to my daughter's '04, and indeed resetting the zero point cal was the fix.