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Old 11-21-2012, 06:20 PM
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Default Code P0327 Knock sensor

My 2001 1.8T is stumbing. I got the codes P0327,P0420 & P0300. Autozone said probably the knock sensor would clear all those codes. Question is, where is the knock sensor (picture)? Price and ease of installation for a DIY job?
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Old 11-21-2012, 07:38 PM
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Here is a link on how to diagnose the knock sensor on the 1.8 Liter engine.

CEL, 16711 p0327, knock sensor 1 signal too low wtf does that mean!? [Archive] - AudiWorld Forums

It could just be loose and not torqued down properly. I have never heard of a knock sensor going bad in a VW but anything is possible.

Also what kind of gas are you putting in your 1.8? I hear of people actually putting in 87 octane fuel and than are wondering why their cars run like crap. The 1.8 needs a minimum of 91 Octance fuel. I never put anything but 93 Octance fuel in my Beetle.
Not sure if your were on a Roadtrip recently and put in some bad gas. You may want to fill up with some quality 93 Octance gas and clear the codes and then see if they return.
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Old 11-21-2012, 07:40 PM
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Also check this link:

P0327
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Old 11-21-2012, 07:42 PM
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Another question. When is the last time you had the timing belt and waterpump service done on the car? Perhaps the timing belt jumped a tooth?? Very important maintenance that a lot of people just seem to overlook or ignore until it is too late.
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Old 11-21-2012, 07:55 PM
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I had the timing belt done about 45k ago. When they say the knock sensor is on the right side, is that the passenger or drivers side. I run 91 in her 99% of the time but I know my wife filled it up a month ago and put regular in it.
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Old 11-21-2012, 08:23 PM
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By right side they mean the right side of the vehicle or Passenger side.

Not a good idea to put 87 Octane in a Turbo charged vehicle especially if the knock sensor is questionable. Preignition or detonation is like taking a sledgehammer to the top of the pistons. It can turn your motor into a door stop fairly quickly.

Also check this thread:

Location of #2 knock sensor??
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