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Old 06-07-2007, 11:12 AM   #1
Sideshowbob
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Default P0327 Code thrown- confirming understanding

Basically this code seems to mean my wiring is ****ed up.

Mine throws when the car has been sitting and it has been damp out, so I am thinking I have an exposed wire.
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Old 06-07-2007, 11:15 AM   #2
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knock sensor low input - check your knock sensor and the wiring and make sure everything is intact. or replace the sensor.
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Old 06-07-2007, 11:18 AM   #3
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cool, but it usually goes away on it's own. I will check it thou.
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Old 06-07-2007, 10:55 PM   #4
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low input means that there is additional resistance in the wire or it's grounding out somewhere. i would start by checking the wires around the connectors for the knock sensor to see if they've become exposed.

You could also try measuring the resistance of the knock sensor itself. I don't know what it should be offhand.
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Old 11-10-2008, 09:44 AM   #5
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popped again!


happens after the car sits out on really raining hard and windy.
I'll check the wiring someday, my car isn't knocking
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Old 11-10-2008, 10:46 AM   #6
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remove the knock sensor and clean the base where it mounts, on the block and sensor.
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Old 11-10-2008, 12:10 PM   #7
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Bob.....fill in your damned profile so we know what the hell vehicle we are talking about


and if this is a pre01 NA engine....throw the damned sensor away and put a new on in and be done with it already....those sensors are known to have issues
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Old 11-10-2008, 02:15 PM   #8
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Quote:
Originally Posted by crampfan View Post
remove the knock sensor and clean the base where it mounts, on the block and sensor.
If you do this make sure you torque it down to the correct specs. The knock sensor is basically a small piezoelectric microphone and is very sensitive to overtightening or rattling from being too loose.

Personally, I think it's a broken wire or loose harness plug.
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Old 11-10-2008, 08:31 PM   #9
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^- +1 for what that guy said. if it happens mainly when its raining then i would think its a wiring issue.
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Old 11-10-2008, 09:17 PM   #10
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Quote:
Originally Posted by Haelan View Post
If you do this make sure you torque it down to the correct specs. The knock sensor is basically a small piezoelectric microphone and is very sensitive to overtightening or rattling from being too loose.

Personally, I think it's a broken wire or loose harness plug.
You are extremely correct, sir. I would say to check out the knock sensor, and replace it if necessary. Also I would probably do it sooner than later since you don't seem to motivated to do it.
Edit: The reason you need to fix it soon is because if your computer thinks that it is knocking, its going to retard the timing until it stops knocking. If the sensor isn't functioning properly, then you might have an issue on your hands.
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Old 11-12-2008, 11:28 PM   #11
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i threw this same code today as well. besides just the sensor malfunctioning are there any other causes to this? i haven't been driving my car lately and all of a sudden it threw this code so i'm just curious.
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Old 11-12-2008, 11:42 PM   #12
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i threw this same code today as well. besides just the sensor malfunctioning are there any other causes to this? i haven't been driving my car lately and all of a sudden it threw this code so i'm just curious.
Not really. The device is very simple. The complex knock signal analysis is done in the ECU. The knock sensor itself is basically a small piece of metal that picks up sound waves and converts it to electrical energy. If the ECU doesn't even see noise there is a loose connection somewhere or the knock sensor itself took a crap.
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Old 11-13-2008, 01:39 AM   #13
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k. thats what i figured. i installed a reverse scoop and theeeen it rained. guessing the water ****ed it up.
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Old 03-09-2009, 02:15 AM   #14
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/sigh

I have this code.
I've replaced the knock sensor
Replaced the entire engine harness
and it still throws the code.

=(
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Old 03-09-2009, 02:32 AM   #15
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Quote:
Originally Posted by hanzo918 View Post
/sigh

I have this code.
I've replaced the knock sensor
Replaced the entire engine harness
and it still throws the code.

=(
well it aint a ****ing 92 dihatsu so what the **** car IS it??
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Old 03-09-2009, 10:27 PM   #16
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well it aint a ****ing 92 dihatsu so what the **** car IS it??
Oops.. didn't expect anyone to care. =)

It's a 06 STi
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Old 03-10-2009, 12:12 AM   #17
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seems like a bad wire or sensor or other electrical issue
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Old 03-10-2009, 12:28 AM   #18
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Yeah... granted I've swapped out the sensor and the whole engine main harness...
I'll double check the torque to be 17lbs and the resistance...
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Old 03-23-2009, 04:35 PM   #19
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Hey guys, hate to necromance here but I saw this thread was already made...

I'm getting this code in my 04 WRX and I'd love to check this, but I have no idea offhand where the knock sensor is located physically in the car/on the engine. Could someone kindly point me to a diagram, picture, or explain it? Thanks...
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Old 03-23-2009, 04:41 PM   #20
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Quote:
Originally Posted by shinsain View Post
Hey guys, hate to necromance here but I saw this thread was already made...

I'm getting this code in my 04 WRX and I'd love to check this, but I have no idea offhand where the knock sensor is located physically in the car/on the engine. Could someone kindly point me to a diagram, picture, or explain it? Thanks...
Facing the front of the car--look behind the alternator on the engine block. It will be circular in nature.
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Old 03-29-2009, 06:09 AM   #21
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Quote:
Originally Posted by Uncle Scotty View Post







seems like a bad wire or sensor or other electrical issue


So I swapped out my sub-harness with a good one. Still no go.

And checked the service manual's wiring diagram (06 STi), it's not matching up to the engine harness.. It looks like the previous owner was messing with the ECU, and ended up using the wrong wiring harness to the ECU.
Does anybody know the Subaru part number for the big tube of wiring that goes from the engine bay to inside the fender to the ECU? I think I'm just going to order a new harness....
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Old 05-25-2009, 12:05 PM   #22
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hanzo, any update? MY06 STi just started this as well...
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Old 05-25-2009, 01:22 PM   #23
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Quote:
Originally Posted by hanzo918 View Post
So I swapped out my sub-harness with a good one. Still no go.

And checked the service manual's wiring diagram (06 STi), it's not matching up to the engine harness.. It looks like the previous owner was messing with the ECU, and ended up using the wrong wiring harness to the ECU.Does anybody know the Subaru part number for the big tube of wiring that goes from the engine bay to inside the fender to the ECU? I think I'm just going to order a new harness....
****in stupid bloody kiddie bastards
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Old 05-25-2009, 11:58 PM   #24
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****in stupid bloody kiddie bastards
Agreed, I've seen too many cars that were trashed by people who simply made uninformed decisions and messed up an otherwise good car.
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