Installed the N Gauge and ran the datalog for the new tune from Lund and they were able to find that there was a 15% difference in fuel trims between Bank 1 & 2. Brandon said it looked to him like it was an exhaust leak on Bank 1. HE WAS SPOT ON! Put it up on the rack and found a crack in the cat for Bank 1 of the Corsa X pipe with high flow cats. Not at a seam but in the shell itself. Little bit of welding, new data log and now waiting on the final tune. At 71 years old and having been a tuner and builder since I was 15, I'm still amazed that you can build a solid tune for a car thousands of miles away that you never saw.
