Hi I need some advice
I swapped an ls1 for a new gm performance parts Ls3 this summer. I use the156 os and have built up my tune when braking in the engine. First auto ve then calc ve, last dialing in the maf. After a swap to 3.42 gears, I decided to set the shift points where it should be. (4l60e). And then tuned the upper part of the ve. First it was very fast. Then I got some trouble with the shifts, and it hit the rev limiter when it shifted.
And then suddenly, I ran out of summer. It was just rain cold weather and slippy roads for weeks.
Now I feel that the engine have lost power. Its fine during normal driving but it misses something during heavy acceleration, and it feels like there are some vibrations. I have checked the spark plugs and used the scan tool to balance the cylinders.
Everything looks ok.
My lc1 shows 0.45 afr richer then it is, but this was also an issue with my old engine. The maf sensor is a corvette 85 mm Pro-M sensor. It still needs some tuning but it is close to 12000 hz, is this sane?
If I set up auto ve again, do I need to take the low iat into consideration?
I have a few logs from a trip today. Can somebody please have a look?