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Old 08-26-2000, 05:44 PM   #1
JP Money
Scooby Newbie
 
Member#: 909
Join Date: Feb 2000
Location: Auburn Hills, MI, USA
Post Installed S-AFC, Check Engine light came on... HELP!

The wiring is correct. I followed the instructions off of Kartboy's site.

We took it out for a test-run with lo-throttle correction settings at 0%, and Hi-throttle settings at -1% for 3K, -2% for 4k, -3% for 5k, and -4% for 6K. After a few WOT runs, the Check engine light came on.

What does this mean? I didnt have it correcting too much... How can i get the light to go away?

What are some good settings for MY00? I have an intake, exhaust, and U-pulley.

Help!

-JP
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Old 08-26-2000, 06:29 PM   #2
prezios
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Member#: 407
Join Date: Oct 1999
Location: Verona, NJ
Vehicle:
1999 Outback Sport
White

Post

Someone else can answer better than me but the same thing happened to me. It was the setting for the pressure sensor. It needed to be set to 4. You will need to reset the ecu to get rid of the check engine light. Then try again. I don't know of anyone that has tuned the my2000 yet. I will after getting my A/F Gauge intalled along with a third O2 sensor. I hope this helps.
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Old 08-26-2000, 09:20 PM   #3
RidinLow
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Chapter/Region: Tri-State
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Vehicle:
1995 325i
Arctic Gray

Post

Don't waste your time with adding another O2 sensor or by trying to interpret the AFC's O2 voltages. Just get an EGT gauge, RalliSpec & I installed mine today, & it's much easier to tune with, IMO, since it's not bouncing all over the place like an A/F gauge.
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Old 08-27-2000, 05:43 AM   #4
prezios
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1999 Outback Sport
White

Post

Does the A/F gauge bounce around that much that its hard to tune by? I thought if I had a seperate O2 sensor for the A/F that it would be a somewhat steady reading.
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Old 08-27-2000, 09:29 AM   #5
Avenger
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Location: Vancouver, Canada
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2000

Post

EGT?? is that Exhaust Gas Temperature?? How you tune this?
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Old 08-27-2000, 01:43 PM   #6
RidinLow
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1995 325i
Arctic Gray

Post

I'm still trying to figure this out myself, but I'm shooting for EGT's of around 1400 deg F. Too low means too rich, too high means too lean. If you've ever seen an A/F gauge in action, you'll know what I mean by it bounces around a lot. And like Shiv said in SCC, with just an A/F gauge, you have no idea how lean or rich you are if you're way out of the ballpark.

~G
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Old 08-27-2000, 04:18 PM   #7
NYEJ25
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Join Date: Jul 2000
Chapter/Region: Tri-State
Question

I am getting a AFC for my 2000 RS. I have a intake and cat back system. Is this a worth while buy? Also does anyone have settings for the unit. I dont know how to set it up. Thanks alot
drew
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Old 08-27-2000, 09:27 PM   #8
tk__427
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Location: wayne, mi 48184
Post

where is the ecu located?
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Old 08-28-2000, 08:16 AM   #9
JP Money
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Member#: 909
Join Date: Feb 2000
Location: Auburn Hills, MI, USA
Post

jake- you gotta ask me all your Q's at the next redline meet.... Hey are you 19 yet? I think Tim wanted to go to Canada after we meet on Friday...

The ECU is located behind the carpet and a metal plate beneath the passenger's side footwell. Just remove the plastic clips from the door sill and also in the carpet, then pull it back and Voila! there it is!

The S-AFC wasnt very hard to install at all. Theres a great wiring diagram at www.Kartboy.com, as well as plenty of wiring and settings info at www.lagging.com I have yet to install my A/F gauge (i'm waiting on the A-pillar pod) But when I do, I'll post my best settings so that other MY00 owners may benefit.

See ya!

-JP
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Old 09-03-2000, 11:58 AM   #10
nizz
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Member#: 188
Join Date: Aug 1999
Location: New York
Vehicle:
2004 Forester XT
24k gold on white

Question

Do all of us MY2000 people have to use In=7 and Out=7 for the pressure sensor settings? I got a CE light after I installed my AFC right when I started my car. Please advise. TIA.

nizz
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Old 09-04-2000, 05:17 AM   #11
prezios
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White

Post

Hey Nizz, I have a 99 OBS but I think the same settings should apply. I am useing in=4 and out=4. I hope this helps.

Carmine
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Old 09-04-2000, 06:59 AM   #12
RidinLow
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1995 325i
Arctic Gray

Post

I'm using i=7 & o=7 for my MY00 RS too, per RalliSpec's recommendations.
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Old 09-04-2000, 08:32 AM   #13
prezios
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Member#: 407
Join Date: Oct 1999
Location: Verona, NJ
Vehicle:
1999 Outback Sport
White

Post

It must be different in the RS than the OBS because RalliSpec installed mine and when set at 7 in and 7 out it thew the check engine light on me. We reset the light (code for MAP sensor) and reset the S-AFC for in 4 and out 4 and no problems ever since.
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Old 09-06-2000, 09:39 AM   #14
nizz
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Member#: 188
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Location: New York
Vehicle:
2004 Forester XT
24k gold on white

Question

prezios,

How did you reset the CE light?

nizz
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Old 09-06-2000, 09:52 AM   #15
rpone605
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Join Date: Jun 2000
Location: Cleveland, Ohio
Vehicle:
2004 WRX Sport Wagon
Silver

Post

ecu resets are easy.

pull the cable off the battery let sit for 35 minutes. start the car..it should stall as soon as you start it. then let it sit for 10 minutes or until the fan kicks in.

hope this helps...and once you start modding expect ce lights to be normal.
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