Hey everyone, I have tried for a couple days to figure this out on my own, but I have not made any progress. So I thought to see what you guys think before I did anything else.

I notice that when I hit a bump the car now throws a check engine light at this time the car will bog out...kinda feels like the timing retarts. but its not the whole time just during the bump.

if i hit another the light goes out.

So on the way to work I play. Lights on-Light out...

I thought that maybe the bumps were setting the Knock sensor off- I checked 4 or 5 times and nothing that I can see or tell is there.... The sensor was new with the completion of the build so maybe a year old now.

also when I pulled the code from the ECM- I got code 13....O2

so I checked, sensor also looks ok and as did the wiring.
I will attempt to get a V-Meter to try to test,
But it dont really sound right, unless the O2 sensor is messing up the Air/gas and that causes the odd feeling.

Either way light off - car is running like a CHAMP, light on and its not 100%....

I thought to just change the sensor but....in my mind if that was the cause i would have a light all day...not just when I hit a bump.

So my thought is a connection of some kind-hit bump and it breaks causing light hit bump and it connects turning light off.

So hopefully someone has an ideal.
let me know please
thanks