Something is whacky there. I don’t know how FiTech calculates road speed or rpm. But it does sounds like it was in 3rd, not 4th (overdrive).
Can you you feel each shift?
So after driving it today, with the computer update, it does shift to overdrive, and does now lockup, in lockup it’s right at 26-2700 rpm cruising, when i tap the brake tc unlocks, stays in od and jumps to about 3200. I want to say the TPS readings were throwing it off causing erratic shifts.
BUT, the VSS is way off, fitech was closed over the long weekend today to do some troubleshooting and how to calibrate it, that also can be throwing off the shifts and OD/TC lockup.
It shows 7-11 mph at idle which is weird, checked the vss connection to make sure pins weren’t bent.
Also, it’s definitely breaking up under hard acceleration which I may have took for the trans slipping, when I ease into the throttle it will pull like a train, but when I just hammer down it starts choking, tell tale sign of starving for fuel or bad coils, spark plugs are light, not fouled, but again, that vss may be throwing off the tables for rpm to speed, who knows, I ordered 4 new rims as well, I don’t feel comfortable street driving on the weld draglites, I prefer steelies, rear 15x10 5x4.5 currently running 27.5s, fronts are 15x7 5x4.75 on 205s it’s parked until they come in.
Thanks for the input and help, will keep you all updated and let you know what the verdict is