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Old 03-19-2005, 05:06   #1 (permalink)
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AUII knock sensor

Anyone had trouble with the knock sensor in an AUII? I keep getting code PO3325 when I do a code check (knock sensor out of range). When it is cleared it takes about a week of driving before it reappears. I first thought I had logged the code by hitting the speed limiter (oops) a couple of times, but havent done this lately and the code still logs. At times it seems a bit gutless until 2000 rpm then it takes off. The only spec I can find for the sensor is that the resistance should be >10k ohm. Mine's about 4.5mega ohms.
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Old 03-19-2005, 14:59   #2 (permalink)
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Re: AUII knock sensor

this may sound funny but.... un bolt it and clean the bolt and shaft it sits on make sure there is no corrosion on any thing..... I havnt had any experance with au knock sensors but some use the mounting bolt as an earth.. if u get any high resistance there it could throw it out of range.. But im pretty sure the au ones are a 2 wire one (own earth) so this could be usless information any hows its worth a trie i gues.
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Old 03-21-2005, 01:34   #3 (permalink)
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Re: AUII knock sensor

Yeah, already tried that. It is a two wire sensor but like you said, anything's worth a try. Thanks.
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Old 03-23-2005, 17:22   #4 (permalink)
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Re: AUII knock sensor

Could someone tell me where the knock sensor is located and is it hard to remove?
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Old 03-23-2005, 20:19   #5 (permalink)
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Re: AUII knock sensor

Knock Sensor
The Knock Sensor is on the left side of the engine under the intake manifold near cylinder #5
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Old 03-26-2005, 07:12   #6 (permalink)
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Re: AUII knock sensor

Quote:
Originally Posted by johnydep
Knock Sensor
The Knock Sensor is on the left side of the engine under the intake manifold near cylinder #5
Thanx johnydep!!!
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Old 03-26-2005, 18:24   #7 (permalink)
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Re: AUII knock sensor

I think you'll find that the bolt will be loose or excessively tight which throws the readings off. Make sure the knock sensor bolt is properly torqued to the correct value.
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Old 03-30-2005, 01:12   #8 (permalink)
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Re: AUII knock sensor

Hadn't thought of that, thanks. Any idea on the correct torque?
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