Originally Posted by
Simplyjesse
So just a quick update about this problem. I contacted HPtuners to get some hidden tables but none worked to get the problem solved. I have figured out my next step though. I reduced the problem down to VSS reading 0 (no forward motion detected), and therefore the E78 ECU not allowing me to rev past 4k. They're is no known fix or tune for this. My plan is to supply a set pulse (PWM) to the VSS simulating whatever the minimum MPH that's needed so the ECU thinks the vehicle is rolling. I will wire in a replay that will start producing the signal once I set my 2-step, then disable after launch. Super tricky though because I believe the 2-step disables at like 4 MPH so it's gonna take some electronics sorcery. I bought all the electronics to do this but I decided to replace my block first due to excessive blow by, plus I need to swap my 4th gear out from my old tranny so this will be done later down the road. I'll update again whenever that is. Honestly, I wish I had the money for a Haltech. This ECU sucks man....