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AEM WB02 problem

Old 09-29-2008, 06:05 PM
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Default AEM WB02 problem

When I start the ECU, the gauge on my dash reads full rich. Car isn't running at all. I swapped in another sensor and it does exactly the same thing.

Is something wrong with the gauge?
Is this indicative of a wiring problem?

Anyone?

BTW, I think the ECU is getting the right signal. I have a new gauge (a westach needle gauge) arriving in a few days so I'll see if that works.
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Old 09-29-2008, 06:11 PM
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give us some more info. like are you running a Megasquirt? If so is the stock O2 still connected to the factory harness?
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Old 09-29-2008, 06:27 PM
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No.

I have only the AEM (no gauge) WB02.
I have an Obiwan link.
The AEM has extra wires to supply the narrowband signal to the gauge. This has been working just fine for about the past 4 years.
The Link seems to be reading correctly.
I'm thinking one of the wires is probably loose.

I will be annoyed if I wasted 60 bucks on a sensor when it was just a wiring bug.
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