I have a 2012 5.3L Silverado with a street tune. Tune has been on the vehicle for almost 2 years now with no issues. I had the speed limiter removed and have run the vehicle to speeds in excess of 100mph many times in the past. Suddenly the other day the speed limiter is kicking in at the stock limit of 95mph again. What would suddenly cause the speed limiter to start functioning again?

 

has it been to the dealer ? updated tune get flashed into it there?

 

Nope. And all other parts of the tune seem to be working just fine. Shift points, shift firmness, V4 mode is still deactivated, etc.

 

theres an additional failsafe speed limit for whenever the 4WD system fails, or any other drivetrain components trigger a CEL. Can't remember off the top of my head which exactly are they, but the 4WD fail speed limiter is there for sure. Not sure if you have 4wd though,

 

I do have 4wd. The vehicle did throw a wheel speed sensor B failed code. I replaced the sensor and cleared the code with my scan tool. This was roughly the same time the speed limiter started working again, so maybe the two are linked? What's my next course of action here?

 

Change all the other speed limiter tables to a higher speed. I usually just make all of them match when I change a speed limiter so its not an issue.