Originally Posted by
JMaddy66
Okay guys I am still stumped, I have tried to copy the tune parameters from some of these other tunes and write them and the car either runs really bad or has a hard time even staying running. When I write the stock gt tune it idles okay and is even drivable, I have a rich code and when accelerating under a load I can feel it breaking up. If I really slowly roll into the throttle it seems to not break up even in higher rpms. The GT tune I uploaded above is the one I am running I feel like I just need to copy over just some of the right bits of a factory 4v tune to fix my issues. If anyone has any suggestions on what parts I should adjust or tables I should copy over I am all ears. I finally got Forscan so I can at least log some live data, so anything I should look at as far as live data numbers go that would also be helpful. I am bummed because the 4v engine I bought came with the ECU, I tried just comparing the tune files and copied all the differences expecting it to work but runs way worse than just the GT tune file. Thanks