Check Engine Light Again? VSC, TRAC

Bumbo

New member
Well, the first time it ever happened was when I went wheeling... I dont remember the exact events but I ended up with the same VSC, TRAC, and Check engine lights...

The FIRST time I ended up plugging in a friends scanner tool and that ended up dumping my "zero point calibration"... and fixed that myself. Because of that I never got an actual code from the scanner tool...

Just via reading, I ended up with it possible being emissions, and replaced the gas cap, which was pretty worn out anyways.

Happened again today..
nVgLisr.jpg


I was on 4 Low with the center locked and tried to get over some items which resulted in some wheel slipping and a little wheel spin... after that I noticed the check engine light... a little bit later I got a persistent VSC TRACK light that just stayed on too.


Its a bit irritating, but do I just need to clear a code, or do I need to look at something else?

I used this as an excuse to get a Scanguage 2, but this a common issue or do I have to go back to the "zero point calibration" calibration.

Here are some picts of the day... an added bonus to the thread.

pSMkBZG.jpg


HyTayVZ.jpg


4jPe0eL.jpg
 
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I get the same combo when it's hot outside and I'm heavy on the gas pedal... Stays around for 50+ miles and goes off... until I'm heavy on the gas again. Pulled the code one day (don't remember) and some research here led me to believe I need to clean the MAF sensor, which is still on my to do list. Haha.


Sent from my iPad using Tapatalk
 
What code are u getting?

My scanner just came, and I just got a chance to use it.

It threw two codes:
P0420
P0430

Quick search says its O2 or Cat? But this has only happened twice, only when off-road, and only when I was pushing the 4Runner to the point of getting some wheel slip/spin.

Any thoughts?

Edit: I just used the Scanguage to clear the codes and its all "back to normal", but still a bit confused as to why anything O2 related would trigger VSC lights, and the fact its only happened when wheeling...
 
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