AFC o2 Sensor

U-R-A-BUS · 03-15-2000, 12:48 AM

I have my APEXi S-AFC blue wire, hooked to my first o2 sensor. I go to sensore check, watch the voltage on #2, the thing jumps from .001 to 1.00 and every number in between. I know the voltage isnt a great way to monitor the o2 but this is impossible...
See ya

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HRE | giulio · 03-15-2000, 06:39 AM

I think that sounds right. To use the AFC to monitor the O2 sensor, you need to take readings at WOT (wide open throtle).
g

Gadzuks · 03-15-2000, 07:19 PM

The voltage at Idle should jump around,if it's running like .1 to .2 solid at idle it's to lean. At wide open throttle while accelerating it should try to stay around .9 to .94 for a good even fuel burn.

2yLiTe · 09-17-2000, 11:10 AM

Is this true? .9s at WOT? every other post I've read says .85 to .87...what gives?
And is it the higher the value...the leaner? or the other way around?

Gambit · 02-02-2001, 08:20 AM

When u mentioned WOT, can you be in neutral or the car must be going to get the reading?

Tony_Chen · 02-05-2001, 12:18 AM

Does anybody knows how to setting S-AFC in Impreza RS2.5 year 2000, I am setting S-AFC in Pressure 07 sensor(is it ok?) and I don't know the HI-Thrtl and LO-Thrtl setting,can someone give me some advice?

thanks a lot.....

Tony_Chen

03-15-2000, 12:48 AM	#1
U-R-A-BUS Scooby Newbie Member#: 516 Join Date: Nov 1999 Location: hon., hi.	AFC o2 Sensor I have my APEXi S-AFC blue wire, hooked to my first o2 sensor. I go to sensore check, watch the voltage on #2, the thing jumps from .001 to 1.00 and every number in between. I know the voltage isnt a great way to monitor the o2 but this is impossible... See ya * Registered users of the site do not see these ads.

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03-15-2000, 06:39 AM	#2
HRE \| giulio Former Vendor Member#: 481 Join Date: Nov 1999 Location: NY USA	I think that sounds right. To use the AFC to monitor the O2 sensor, you need to take readings at WOT (wide open throtle). g

03-15-2000, 07:19 PM	#3
Gadzuks Scooby Newbie Member#: 433 Join Date: Oct 1999 Location: NV.	The voltage at Idle should jump around,if it's running like .1 to .2 solid at idle it's to lean. At wide open throttle while accelerating it should try to stay around .9 to .94 for a good even fuel burn.

09-17-2000, 11:10 AM	#4
2yLiTe Scooby Specialist Member#: 660 Join Date: Dec 1999 Location: Windsor, Ontario CANADA	Is this true? .9s at WOT? every other post I've read says .85 to .87...what gives? And is it the higher the value...the leaner? or the other way around?

02-02-2001, 08:20 AM	#5
Gambit Scooby Specialist Member#: 102 Join Date: Jul 1999 Location: The meeting place	When u mentioned WOT, can you be in neutral or the car must be going to get the reading?

02-05-2001, 12:18 AM	#6
Tony_Chen Scooby Newbie Member#: 3983 Join Date: Feb 2001 Location: Sunnyvale,CA Vehicle: 2000 Impreza Rs2.5 white	Does anybody knows how to setting S-AFC in Impreza RS2.5 year 2000, I am setting S-AFC in Pressure 07 sensor(is it ok?) and I don't know the HI-Thrtl and LO-Thrtl setting,can someone give me some advice? thanks a lot..... Tony_Chen