Idle AFR

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YuraL
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Joined: December 28th, 2011, 3:39 pm
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Idle AFR

Post by YuraL »

Which table is registered for the mixture at idle?
I made a poor mix on the entire CL AFR table, but at idle it still remained 14.7:1.
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mituc
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Re: Idle AFR

Post by mituc »

I guess we don't have access to that idle AFR table. The closed Loop table also contains the AFR's for the RPM corresponding to idle but I think it's not actually taken into consideration.
As far as I remember the idle AFR's are influenced by the second lambda sensor readings as well, while the tables we have access to in VT rely only on the readings of the primary oxygen sensor.
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YuraL
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Re: Idle AFR

Post by YuraL »

Maybe Steve knows more.
400+ Mazda6 MPS
ATP GTX3071, AEM SRI, CPe TIP, Treadstone TR11 FMIC, 3" Rud Exhaust, KMD HPFP, Methanol Injection Kit, CP Forged Pistons, K1 Forged Rods
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Sassimac
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Re: Idle AFR

Post by Sassimac »

My experience altering the AFR at idle RPM points in the closed loop table only have an effect for a short time. After that things go a bit haywire.

I leaned the idle and low RPM AFR's out a fraction, and the net result after a few days was that the AFR became richer..!!

I wish I knew what was happening here.
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