IACV wiring?
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IACV wiring?
To start off I have a 90 CRX Si with a B16.
I'm having an issue with CEL 14 showing up on 2 good known IACV's. I'm starting to think I have a broken wire somewhere and want to verify the wiring from the sensor to the ECU.
From what I know the IACV goes to A17(Blu/Yel) and A11(Blk/Yel). I did however do a wire tuck and shortened a ton of wires. I'm noticing that there is a an extra Blk/Yel wire on the drivers side round plug that would have been used for a dashpot sensor, so perhaps I mixed match the wires up some how?
My questions is this, Do all the Blk/Yel wires supply constant voltage to the sensors, or are they switch at the ECU? Also, if my wiring is wrong, can you verify what I need to change?
Thanks in advance.
I'm having an issue with CEL 14 showing up on 2 good known IACV's. I'm starting to think I have a broken wire somewhere and want to verify the wiring from the sensor to the ECU.
From what I know the IACV goes to A17(Blu/Yel) and A11(Blk/Yel). I did however do a wire tuck and shortened a ton of wires. I'm noticing that there is a an extra Blk/Yel wire on the drivers side round plug that would have been used for a dashpot sensor, so perhaps I mixed match the wires up some how?
My questions is this, Do all the Blk/Yel wires supply constant voltage to the sensors, or are they switch at the ECU? Also, if my wiring is wrong, can you verify what I need to change?
Thanks in advance.
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Re: IACV wiring?
all of the black/eyllow wires are power - at the IACV you should have a blue with yellow stripe and black/yellow - your Si engine harness should have one connector that isn't used - it went to the Fast Idle Control Valve on the back of the intake manifold - it has a black/yellow and a solid blue wire - neither of these are needed - make sure you have the blue/yellow and not the solid blue going to the IACV
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Re: IACV wiring?
all of the black/eyllow wires are power - at the IACV you should have a blue with yellow stripe and black/yellow - your Si engine harness should have one connector that isn't used - it went to the Fast Idle Control Valve on the back of the intake manifold - it has a black/yellow and a solid blue wire - neither of these are needed - make sure you have the blue/yellow and not the solid blue going to the IACV
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