AEM Wideband wiring

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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708803
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AEM Wideband wiring

Post by 708803 »

I am looking to get this AEM 30-2310 - AEM Inline Wideband UEGO Controller since Spartan has been out of stock for months.
Does anyone have a wiring diagram? Specifically which wire goes to which pin on the MSII?
AEM has nothing on the pin out for the Megasquirt.
Here is a link to source of part http://www.amazon.com/AEM-30-2310-Inlin ... B0032VWWMS
Thanks for any help.
1971 Honda N600
700 cc air cooled engine
36 Hp
DonTZ125
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Re: AEM Wideband wiring

Post by DonTZ125 »

The Spartan Sensor ($105 IIRC; can't replace the sensor) is out of stock; the Spartan lambda controller ($75 by itself, $125 if you want to include a replaceable sensor) is still listed as available.
708803
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Re: AEM Wideband wiring

Post by 708803 »

The question is about a wiring diagram for the MSII and the AEM lambda sensor. Specifically the DB 37 pins.
1971 Honda N600
700 cc air cooled engine
36 Hp
trakkies
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Re: AEM Wideband wiring

Post by trakkies »

Connections to the MS are the same for all O2 units.

http://www.megamanual.com/ms2/V3assemble.htm#ew
Dave P, London UK.
Rover V-8
MSII V3
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Tech Edge Wideband
708803
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Re: AEM Wideband wiring

Post by 708803 »

So you are saying that
RED - Connect to a switched, fused (5A) 12 volt power source.
BLACK – Connect to a clean power ground.
WHITE - Connect to Lambda + Input. (Pin 23)
BROWN - Connect to sensor ground. Connect to power ground if sensor ground is not
available. ( any of the DB37 grounds)
*GREY – Connect to RS232 serial port on laptop/pc. See section on Serial Data (not connected)
1971 Honda N600
700 cc air cooled engine
36 Hp
708803
Helpful Squirter
Posts: 42
Joined: Mon May 28, 2012 10:05 am

Re: AEM Wideband wiring

Post by 708803 »

DonTZ125 wrote:The Spartan Sensor ($105 IIRC; can't replace the sensor) is out of stock; the Spartan lambda controller ($75 by itself, $125 if you want to include a replaceable sensor) is still listed as available.
I just realized what you were saying. Does this mean any Bosch LSU 4.2 Wideband O2 Sensor has the correct connector for the spartan controller? Like found on some VW's
1971 Honda N600
700 cc air cooled engine
36 Hp
DonTZ125
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Re: AEM Wideband wiring

Post by DonTZ125 »

708803 wrote:
DonTZ125 wrote:The Spartan Sensor ($105 IIRC; can't replace the sensor) is out of stock; the Spartan lambda controller ($75 by itself, $125 if you want to include a replaceable sensor) is still listed as available.
I just realized what you were saying. Does this mean any Bosch LSU 4.2 Wideband O2 Sensor has the correct connector for the spartan controller? Like found on some VW's
Correct.
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