high rpm

[skipper]

It was never the CEL my mistake.It was always the triangle. When they put it on the computer only active code was exhaust gas pressure sensor but the triangle was not on when I took the old one out. After the change I turned to ON but not start and the triangle stayed lit through the Abs check started truck let get to op temp and was still on then drove it truck ran fine no high rpm after stopping.I thought it would do a Regen while driving so not sure. It costs $200 just to hook up to incite around here.just trying to figure out if regen is needed when sensor is changed.i see on YouTube people get one done