Quote:
Originally Posted by brn12345
The sound of ball bearings on a marble floor is hard to miss. For me i have ZERO full throttle knock, but upon shifting during normal driving as soon as i let go of the clutch and put my foot back on the accelerator it knocks (heard/logged). I am not too concerned about it but what bugs me is that it drives the IAM down. By the end of an afternoon driving the IAM is at 0.25 today. If i go out and find a nice stretch of road and floor it for a while it goes back up quickly to 0.6-0.8.
So regardless if its real knock or not, the impact on IAM is real (unless something else is making the changes to IAM). To confuse a bit more check this post of mine, I am still baffled by why IAM dropped like it dropped there. Nice to see you in this post 
http://www.ft86club.com/forums/showp...2&postcount=56 |
you can negate the effect on IAM by reconfiguring the base and advance tables to not allow correction at very low loads and rpms. this is what i'm doing now, and it has solved the issue of the iam dropping because of the knock, though of course the knock itself (real or otherwise) is still there. basically this involves ensuring that the areas where you see the knock have all of their timing in the base table, with zeroed out advance (again, this is only is very low load, low-mid rpm range). with no advance to remove in these cells, it won't cause the iam to drop, effecting the entire rest of the map.