Tuning with an AFR, reading @ idle?

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gooserex
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Tuning with an AFR, reading @ idle?

Post by gooserex »

I'm new to tuning with an AFR, and I was curious what would be an ideal reading for idle? ANY other pointers are welcome.

Thanks!
1989 Yamaha FZR600
40,500+km
- V&H Powerpak, K&N Pods, Stage 3 Jets, V&H 4-1 Super Sport, BT014's, PIAA Plasma Ion H4s
- 94' Fork Lowers, 96' Rear Rim, 02' R6 Brakes, Galfer SS Lines, .95 Racetech springs, Penske 8993 rear shock
- Ceramic Headers, Thermal Coated Radiator, PLX AFR, CRG RAC Levers

2004 Volvo V70 T5M
171,000+km
- IPD Poly mounts, QBR torque mounts, IPD HD TCV, Tiva CBV, PIAA Plasma Fogs, 35/20 Tint, K&N RX-4730, EST Heat shield, MSport drilled/slotted zinc rotors, FSD + Eibachs, Simons SportSystems Catback

1999 Ford SVT Contour Black/Tan
#2658 of 2760
252,000+km
- K&N, BAT Euro Kit (-1.5"), KVR CF pads, PIAA Plasma Ion HBs/H3s, Battery reloc, BAT y-pipe, Gutted headers, lightened interior and soon to be caged
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DonTZ125
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Re: Tuning with an AFR, reading @ idle?

Post by DonTZ125 »

The only data I've ever seen is for my little 250, at 3.5-4.5% CO, which kinda startled me (I'm an engineer with an industrial burner company, and we shoot for < 100ppm CO) :dubious: . That said, I've been doing a lot of reading on EFI, and a frequent comment is that a lot of engines like to idle rich.

Make of that what you will...
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