Cruising AFR's a little rich!
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Cruising AFR's a little rich!
So, I've been trying to fine tune my cruising afr's. In closed loop it fluctuates around 14.3:1 instead of 14.7:1. I've tried zeroing out the open loop thresholds, drove around and logged, made a couple changes and got the car to run great around 15.0-14.7, put the open loop thresholds back and 14.3 seems to still be the center point.
Any idea how to get the car to run a little leaner at least 14.7?
Any idea how to get the car to run a little leaner at least 14.7?
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If it runs 14.7-15 in open then it should be 14.7 in closed (really should be 14.7 in closed no matter what), but I mean with fuel trims being close to 0. How are your trims btw? Also, you feel like just leaving it open loop in the cruise area? that's one way to get leaner cruise..
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Yeah, that's what I was afraid of.
If it runs 14.7-15 in open then it should be 14.7 in closed (really should be 14.7 in closed no matter what), but I mean with fuel trims being close to 0. How are your trims btw? Also, you feel like just leaving it open loop in the cruise area? that's one way to get leaner cruise..
My Fuel trims are reading -4.5 LTFT mid and -2.1 LTFT low. o2 feedback (STFT) reads zero. I'm wondering if the trims are even logging correctly. They never seem to be any different.
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Tephra mod options
rear o2 sim is enabled
Rear o2 Heater is Enabled
ECU Periphery0 (FAA)
rear o2 is 1
ECU Periphery4 (FEA)
P0140 rear o2 no ACT is 1
anything else I should look into?
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