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Flex Fuel Composition Sensor
I agree, the pink wire should be reading 12 volts, somehow I’m reading 14 volts. The battery was not on a charger but the engine was running, perhaps if I just have the key in the ignition I’ll read 12 volts. Not sure, have to test that. Historically running octane 87 with presumably 10%... -
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Flex Fuel Composition Sensor
Hello all, Got an 04’ Tahoe throwing P0178, P0327, and P0332. Trying to focus on the P0178 for now. At the connector for the fuel composition sensor, I’ve got 14.7 volts off the pink wire, 2.2 volts off the white wire, and 0 on the black (ground) wire. All voltages seem off to me, I’d think...
