Need help with CEL. (Pulled the codes)

[M796]

Hello,
I had a CEL during a track day & on my way home I think the car went into limp mode as it started to cut power. This only happened after a 2nd track day with a pure 800 installed. Never happened with the stock one.

I read the codes & cleared them.
The car drives normal ( I drive it occasionally), but the same codes pop up after a 20 min drive, & I have to clear them again.
Any help is appreciated.

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[razorlab]

Check 02 sensor wiring harness. Could be damaged or melted. Or bad 02 Sensor overall.

If you are running no heatshield on the exhaust manifold, the 02 harness could easily get melted if it wasn't put back correctly.