So, the past few weeks I’ve been having a lot of trouble tuning. I finally figured out my problem. It turns out I cause it more than a year ago but it didn’t show until I tried to tune myself. My mail order tune was OL and I’m trying to tune CL.
When I swapped y-pipes I deleted the precat sensor. In my mind if I have the 2 upstream sensors that it wouldn’t matter. However, the precat sensor keep the CAT from overheating. Without a sensor there is dumps fuel to try and keep the CAT cool. But that was causing my fuel trims to max out in the process.
Well I fixed the problem and added a bonus. I ordered 2 bungs and welded them on. I now have my sensor back in place and a place to put a wideband when that time comes.
Please excuse my welding. it’s really the first time I’ve welded anything. I’ve used one a couple times but honestly I’ve got maybe an hour total welding time. I think I had the feed up too high. It built up faster than I wanted. but it’s sealed so I’m not going to complain lol.
Dropping the y-pipe. I actually considered cutting and welding it on the car. I’m glad I didn’t try. that would have been a PITA
Shitty welds lol:
Good to go!
