Car is running great, I pull away from a light 30% throttle MILs come on connect scanner get cyl 2,3,4 misfire, & front & back 02 sensor error. Clear codes nothing happens. NO CODE. Check pending 1399.

I drove in recording mode for 15 minutes no codes, no errors. WTF?

 

I found this list of codes. No 1399 though. I have driven the car ten cycles 5-15 minute drives each no cel but the pending 1399 is still there.

http://www.myscantool.com/dtc/specific/acura.html

 

20+ start cycles and a 400 mile drive from Phoenix to L.A. (drove with my Actron CP9180 in auto record mode) and no codes. The P1399 is now gone.

Could weak 02 sensors do this? I have no idea if these are original. I am getting great mileage (got 30 at an average of 75 coming back from L.A. just now)

 

Lights lit up again yesterday. CEL & VSA again Fourth cylinder misfire & pending 1399.

I had gone wot for about 10 seconds from a red light (and killed an 08 IS350) that was coming up behind me going at least 30 coming up to the light as it turned green.

Any idea why wot causes MILs?