Extreme lean idle and cruise ???????
10-08-2011, 02:30 PM
#1
Extreme lean idle and cruise ??????? 2 bar HP Tuners op system. Been tuning with a wideband for awhile now. When its idling and cruising its 15.9:1 and when i get on it it is all good and goes back to normal. Ive added a TON of fuel in the VE table but it makes no damn difference. None at all ???? I dont get it.
Last edited by pwrtrip75; 10-08-2011 at 02:38 PM.
10-10-2011, 10:38 AM
#3
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Join Date: Jun 2011
Location: Quad Cities IL
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Well I don't have a way to check your hpt file at the moment. I have had a similar issue though and it sounds like your ECU may be using the open loop table, EQ ratio vs RPM vs MAP or something similar, try going into that table and see what commanded afr's are in there. BTW a 15.9 idle and cruise is just fine, if you weren't boosted I would say go even leaner like 17:1 to save some fuel!
