AFR when off throttle
01-01-2010, 01:22 PM
#16
Racer
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Yes, its too rich. The O2 sensor just connected to guage control unit and its brand new, the unit just ground to somewhere else.
01-01-2010, 09:02 PM
#18
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01-01-2010, 11:33 PM
#20
Racer
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Yeah. By the way, I think the AFM got some problem, I un-screw the plug to lean up the mixture, the guage just show 13.2, slightly throttle at 13.9. Can't reach 14.7 when keep on un-screw. I saw the dirt mark on the thread, the scre has no more raising.
So can the bypass screw complete remove from the AFM?
So can the bypass screw complete remove from the AFM?
01-01-2010, 11:53 PM
#22
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Yes, I checked witht he tuner, it comes to a package
-DME chip
-KLR chip
-3 bar FPR
-MBC (so now using HKS EVC instead)
-WG shim
The insallation guide indicated for 3 bar FPR only, even with adjustable FPR, set it to 3 bar.
The chip came with 3 maps, 15 psi, 18 psi and 18 psi for mod dual port WG.
-DME chip
-KLR chip
-3 bar FPR
-MBC (so now using HKS EVC instead)
-WG shim
The insallation guide indicated for 3 bar FPR only, even with adjustable FPR, set it to 3 bar.
The chip came with 3 maps, 15 psi, 18 psi and 18 psi for mod dual port WG.
01-02-2010, 06:43 AM
#23
Racer
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Last time I've mentioned the AFR at idle was 13.2 , no more leaner even I unscrew the AFM bypass screw. Here is an update,
- Idle: still 13.2
- Off throttle at high-mid RPM: The guage show 20. Thanks for the answer above, its pretty normal
- Off throttle at low PRM (e.g 2500-1200 rpm), this is most interesting:
1.) First adjustment of the AFM screw to lean: The guage shows 16, then down to 14.9, then down to 13.2 when completely stop.
2.) 2nd adjustment of AFM screw to richer (3 turns): The guage shows 14.7, then 14, then down to 13.2 when completely stop.
I think the idle air valve bypass engage when between AFR 14 to 13.2, less air to maintain idle, so it comes to 13.2. But the idle is pretty stable. Hence, I think I have a hard time to adjustment the idle screw to test.
So can anybody take the photo to show 840 +/- 40rpm on the stock guage?
- Idle: still 13.2
- Off throttle at high-mid RPM: The guage show 20. Thanks for the answer above, its pretty normal
- Off throttle at low PRM (e.g 2500-1200 rpm), this is most interesting:
1.) First adjustment of the AFM screw to lean: The guage shows 16, then down to 14.9, then down to 13.2 when completely stop.
2.) 2nd adjustment of AFM screw to richer (3 turns): The guage shows 14.7, then 14, then down to 13.2 when completely stop.
I think the idle air valve bypass engage when between AFR 14 to 13.2, less air to maintain idle, so it comes to 13.2. But the idle is pretty stable. Hence, I think I have a hard time to adjustment the idle screw to test.
So can anybody take the photo to show 840 +/- 40rpm on the stock guage?
