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924-76
Joined: 05 Jun 2006
Posts: 1489
Location: Ontario, Canada
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 Posted: Fri Sep 13, 2013 9:59 pm Post subject: Need help with wideband O2 sensor connection |
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I have an AEM wideband A/F gauge that I want to put on my 80 931. I want to replace the narrow band O2 with the wideband.
Which wire should I connect to wire that was feed by the narrow band? Brown? White? Other?
Instruction here:http://www.carid.com/images/aem/performance/pdf/aem-30-5130-installation-instruction.pdf
Thanks
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1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Sat Sep 14, 2013 12:08 am Post subject: |
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| Quote: | WHITE – The WHITE wire should be c
onnected to the Lambda + input on the
EMS or the analog + input on a similar device.
BROWN – The BROWN wire should be connected to the Lambda – input or the
analog – input. If the EMS
or similar device does not have a – input, the BROWN wire
should be connected to a sensor ground. If
no sensor ground is available, the BROWN
wire should be connected to a power ground.
Note: The BROWN wire must be
connected in order to get correct
readings from the analog output. |
Looks like the White needs to go to the original sensor input for the toofah and the brown to ground (make sure it is a very good ground).
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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924-76
Joined: 05 Jun 2006
Posts: 1489
Location: Ontario, Canada
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| Posted: Sat Sep 14, 2013 12:13 am Post subject: |
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Thanks
I did a search before posting but couldn't find anything, where did you find this quote?
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1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Sat Sep 14, 2013 12:33 am Post subject: |
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On the second page of the PDF you posted.
It essentially the same as the Innovative LC-1 I have (though I don't need the analog output)
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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924-76
Joined: 05 Jun 2006
Posts: 1489
Location: Ontario, Canada
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| Posted: Sat Sep 14, 2013 12:36 am Post subject: |
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| fiat22turbo wrote: | | On the second page of the PDF you posted. |
  ....... 
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1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Sat Sep 14, 2013 6:06 am Post subject: |
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Why unhook the original O2 sensor ? Doesn't that throw the Lambda box into closed loop ?
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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924-76
Joined: 05 Jun 2006
Posts: 1489
Location: Ontario, Canada
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| Posted: Sat Sep 14, 2013 6:24 am Post subject: |
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The idea is to replace the original O2 with a wideband so you only have one, have a A/F gauge and you can still provide the require signal to the box.
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1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP |
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