Runs rich when I hit a bump???

[RacerXJ220]

Recently, while in neutral and cruising on any road, if I hit a bump the car will run rich (mid 11's afr.) and have trouble idling back up without my help (my RPM in the timing and fuel maps here used to be fine no matter how many bumps I took).

I am thinking this is a wire showing it's ugly guts against something. I either do not have, or cannot identify any other issues under part throttle or WOT conditions. I see no change out of the ordinary.

I am thinking to swap the plugs, they've been in there for a long time, and boy do they have some miles on them.... NGK 4464.

Any ideas?

 

[MDCmotorsports]

Does it do any thing "abnormal" under boost? Can you borrow some one's wideband to see if maybe it is circuitry or wiring?

 

[RacerXJ220]

Regarding AFR's, they are all normal under WOT and part throttle conditions. Regardless of how many bumps I hit WOT, lol.

I wouldn't drive my car without a wideband already installed.

I am going through the wiring today to make sure there are no cracks from heat or wear, or maybe a loose connection.... Just only at cruising.

Does it at 99 degrees outside temps, and mid 70's.