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Discussion Starter · #1 ·
Hey,

With air conditioning on, is it normal for AFRs to alternate between a few values.

  • With no air con on, AFR sits at 13,9 due to being happy with cams.
  • With air con on, AFR sits at 14,4 but then will jump to 15,5 then back down again

I find this strange but there is definitely a noticeable change in engine sound when this occurs.

Thanks!
 

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Discussion Starter · #3 ·
Sorry buddy, it's an Apexi ECU.

F/C A.E 1100
F/C E/L 1100
F/C A/C 1200

Idle A.E 950
Idle E/L 1000
Idle A/C 1050
Idle ??? 850

Drive-ability is splendid, just very wacky idling. It doesn't cause any stalling so I'm just being a typical perfectionist and monitoring the values.
 

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At what rpm does the TSP idle switch off?
 

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Discussion Starter · #5 ·
My INJ vs TPS is set at

82, 71, 60, 50, 40, 37.9

I can't see any other settings for the throttle that would manage fuelling
 

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Discussion Starter · #6 ·
I guess my main query is whether it's actually a mechanical issue, i.e. need to clean the AAC or whether I've just got a few idle problems in the map
 
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