Originally Posted by
Luke22493
I have a 99 tahoe 4x4 that i swapped a 0411 into and had a tuning company tune for me. I built the engine myself with higher compression and a cam so it had to be tuned anyway. I just got a wideband installed and its running just a little bit lean and the transmission shifting sucks. Its so bad the converter locks up at 35mph under light load. It shifts to od at about 30mph. I believe some of that is that i did not run the 4 wires from the range switch like i was supposed to. I just ordered hptuners to try and fix these issues. Is there a tune in the repository for 99 tahoe 4x4 5.7 0411 swap? Since i do not have my tuning stuff yet i cannot look. Or will i have to cobble up a tune with this os and this engine and transmission segment and add in the transfer case segment? Tia.