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Old 02-22-2008, 01:16 PM   #1 (permalink)
kslg
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Join Date: Sep 2002
Location: Charleston, SC
Posts: 415
kslg
When does the ECM switch from closed loop to open loop mode?

I've been searching through threads and can't find this one...

When does the ECM on the 07-08's switch from closed loop to open loop?

I know it is closed loop at idle and cruising; someone told me it stays in closed loop until higher than 50-60% throttle.

When it does switch to open loop, has anyone seen with a sniffer what the AFR goes to? I've heard that it is significantly richer.

I am just doing intake and exhaust and don't want to go to a full programable fuel system. I have seen the voltage splitters from nightrider and was thinking this is all I might need...
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2008 FLHX, super ram 5000 injection, billet unobtainium frame, raked, stretched, ported, polished, bored +1.076", .770 lift/360 duration cam, 19.8:1 compression, nitrous, billet wheels, billet virgin rubber tires, custom molded seat, wheelie bar and chrome swag everywhere. Total cost of build $1.2M
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