BoostedBeaver
Moderator
- 957
- 291
- Aug 15, 2009
-
Augusta,
Georgia
Last night I made 5 passes at the local 1/4 mile track. It was the first time that I have been out in a while as I just replaced the rear.
Anyway, I have good AFR's in 1st 2nd and 3rd but fourth gear is forever running lean. I tried adding air to those SD cells that are affected during 4th gear in the 1st 2nd and 3rd log but it failed to correct the issue?? 4th gear seems to start running closer to the commanded AFR in the 3rd log but the fourth and last log show that this is not the case, it just starts running lean again. In the last log you will see that it hits 12.2 12.3 and the car starts to knock.
I would really like any input on this situation as it has me beat. Thank you in advance for taking the time to look at this and any help/comments are welcome.
Robert
Anyway, I have good AFR's in 1st 2nd and 3rd but fourth gear is forever running lean. I tried adding air to those SD cells that are affected during 4th gear in the 1st 2nd and 3rd log but it failed to correct the issue?? 4th gear seems to start running closer to the commanded AFR in the 3rd log but the fourth and last log show that this is not the case, it just starts running lean again. In the last log you will see that it hits 12.2 12.3 and the car starts to knock.
I would really like any input on this situation as it has me beat. Thank you in advance for taking the time to look at this and any help/comments are welcome.
Robert
