Wiring up an AEM AFR WBO2 to a 2000?
#1
Wiring up an AEM AFR WBO2 to a 2000?
Sorry for the noob question, but I cannot find any concrete information about wiring up an AEM 30-0300 X-Series WBO2 UEGO, into any NB Miata? I can find plenty of info about an NA car, but none for the NB? I believe this is my 2nd post here. I'm usually just a lurker here, but I finally have a question.
I'm installing an MSPNP2 along with the WBO2. I'm deleting my NBO2's, as emissions aren't in Alabama.
I've been researching all day and I'm sure I'm overlooking and overthinking the whole process, but what I need to know is, which wire coming off the new WB harness do I need to splice into the stocks O2 plug harness? I have included pics of all the wire colors.
This is the 5 wire new WBO2 Sensor
This is the new WBO2 Harness
This is the stock harness O2 wire colors; Solid Blue, Black w/White stripe, Black w/Red stripe, Pink w/Yellow stripe.
No picture, but the stock O2 sensor wires are White, White, Black and Grey.
I'm installing an MSPNP2 along with the WBO2. I'm deleting my NBO2's, as emissions aren't in Alabama.
I've been researching all day and I'm sure I'm overlooking and overthinking the whole process, but what I need to know is, which wire coming off the new WB harness do I need to splice into the stocks O2 plug harness? I have included pics of all the wire colors.
This is the 5 wire new WBO2 Sensor
This is the new WBO2 Harness
This is the stock harness O2 wire colors; Solid Blue, Black w/White stripe, Black w/Red stripe, Pink w/Yellow stripe.
No picture, but the stock O2 sensor wires are White, White, Black and Grey.
#3
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I also replied to miata.net but my reply there awaits moderation.
This won't work, you can't plug in a wideband sensor as-is to the Megasquirt, you need to get a gauge (controller) that will connect to the sensor, and the controller will output a single signal wire to the Megasquirt.
This won't work, you can't plug in a wideband sensor as-is to the Megasquirt, you need to get a gauge (controller) that will connect to the sensor, and the controller will output a single signal wire to the Megasquirt.
#4
You shouldn't have to splice any wires of the WB harness. I'm not too familiar with your WB, but just glossing over the images, it looks like it should be wired up so:
- 2 Connectors in Red connect to one another
- 2 Connectors in Blue connect to WB Gauge
- Wires in Green are your output signals that you would wire to the MS or O2 harness
#5
I wasn't sure if I could do that or not, but it would definitely be easier!
I have the complete gauge/WBO2 kit.
That pic looks identical to my kit. So, for the wires in the Green circle above, I know red and black are power and ground. The rest of the wires say they're optional in the instructions? I'll post a pic of it next.
I also replied to miata.net but my reply there awaits moderation.
This won't work, you can't plug in a wideband sensor as-is to the Megasquirt, you need to get a gauge (controller) that will connect to the sensor, and the controller will output a single signal wire to the Megasquirt.
This won't work, you can't plug in a wideband sensor as-is to the Megasquirt, you need to get a gauge (controller) that will connect to the sensor, and the controller will output a single signal wire to the Megasquirt.
You shouldn't have to splice any wires of the WB harness. I'm not too familiar with your WB, but just glossing over the images, it looks like it should be wired up so:
- 2 Connectors in Red connect to one another
- 2 Connectors in Blue connect to WB Gauge
- Wires in Green are your output signals that you would wire to the MS or O2 harness
#6
I wasn't sure if I could do that or not, but it would definitely be easier!
That pic looks identical to my kit. So, for the wires in the Green circle above, I know red and black are power and ground. The rest of the wires say they're optional in the instructions? I'll post a pic of it next.
That pic looks identical to my kit. So, for the wires in the Green circle above, I know red and black are power and ground. The rest of the wires say they're optional in the instructions? I'll post a pic of it next.
#7
Read the instructions? I can't tell from the pic, it looks like there are 4 wires. As you said, red and black are power and ground. I imagine the other 2 are your output signals and I would think one is for WB (0-5V) and Narrow Band (0-1V). Refer to your instructions for which is which.
You can, refer to this page: MegaSquirtPNP by DIYAutoTune.com
You can, refer to this page: MegaSquirtPNP by DIYAutoTune.com
Instructions say:
Red - Switched 12v Power
Black - Power Ground
Green/Black - AEMnet-/CANL (Optional)
White/Black - AEMnet+/CANH (Optional)
Blue - Serial/RS=2323 Output (Optional)
White - 0-5V Analog Output Positive+ (Optional)
Brown - 0-5V Analog Output Negative- (Optional)
I'm usually good at wiring, but I'm just unsure which of the above wires (Excluding Red & Black) splice into the under dash wires?
#15
I watched a few of Greg's (CarPassionChannel) YouTube videos of the MS install and they looked simple, but they were also on an NA... I know it's simple and I'm overreacting about the whole thing. I actually don't plan to tinker much with the MS. I'll auto tune it and that may be all I do with it. There's nobody around here that messes with MS, that's why I chose the PNP one.