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Old 05-21-2008, 11:22 AM   #884 (permalink)
Curtis Shipp
Not FNG anymore
 
Join Date: Nov 2006
Location: Cullman, Alabama
Posts: 183
Curtis Shipp is on a distinguished road
Quote:
Originally Posted by yukonjak View Post
Hi C...
I uploaded the map you sent and it ran fine until I reset the BLMs twice...then it started to run rough at low idle and run hard at cruising rpms....I reloaded the map sent and didn't bother to reset anything till I got home...
One thing I did notice on the blms was that the "well" on the blm charts still exists from 1500 rpm to 3000 rpms from 5% to 22.5 % throttle...
I think this a characteristic of the 50mm throttle body...I am going to reinstall the stock throttle body that I ran last year...and see if I can get rid of the rich readings I get at those rpms...
I will reflash with the map you sent and see if that helps smoothen out the blms....
I'll let you know what happens...

thanx
jack
Are you talking about the well on the frt cyl trim? If so this is common based on cam and exhaust. The rough idle is probably caused by a lean condition at idle. Do a live view and see what your afr is at idle. 13.0 -13.2 is as lean as I want to see it. On the mid range cruise lower the afr to 13.9 and and then apply blm's to see how it does. Watch your engine temp on data log 120c is good.

Let me know how it comes out.
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