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Old 08-30-2006, 06:27 PM   #1
Scooby Newbie
Member#: 124546
Join Date: Aug 2006
Location: Portland, OR
2001 Forester

Default Error codes cause failure at DMV

Hello, my 2001 Forester S just failed DEQ due to a couple of error codes that popped up. The emission and noise tests passed.

One of the error codes was "P0328 Knock Sensor 1 Circuit High Input (Bank 1 or single sensor)"

The other code was "P1518 Starter switch circuit low input".

Is there a way to fix these on your own and reset the code without having to take it in? Any advice would be greatly appreciated!
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Old 08-30-2006, 06:40 PM   #2
Matt Monson
Scooby Guru
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
99 2.5RS, '85 911
'73 914 and 2012 BRZ


Were they stored codes or do you have a constant CEL? You can go to Autozone and "rent" an OBD-II scanner for "free" with a refundable deposit. It will read them and clear them for you. But if your knock sensor is bad, clearing the code won't do you much good as it will come right back. Replacing the knock sensor is not too hard. It's directly under the throttle body on the driver's side of center. It's the black cylinder mounted to the block with a 12mm bolt.

As for the starter code, I don't know about that one...
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Old 08-30-2006, 07:03 PM   #3
Scooby Newbie
Member#: 124546
Join Date: Aug 2006
Location: Portland, OR
2001 Forester


Thanks! The knock sensor is definately a place to start. The starter code is a subaru specific code, I dont know where to start with that one.
LoganM111 is offline   Reply With Quote
Old 08-30-2006, 10:24 PM   #4
Scooby Specialist
Member#: 38222
Join Date: Jun 2003
Chapter/Region: Tri-State
Location: Cicero, NY
'10 &'12 Foresters
another Miata convert


Always a good idea: Put your location in your profile. There might be someone nearby who would clear those codes out for you.

Further, before you'll pass inspection, you'll need a certain number of (I forget the correct term) conditions to be set to "Ready". When the ECU is reset, they all go blank. After driving in certain conditions, these registers set themselves to "Ready". You need to have a certain number of them good-to-go in order to pass. I think my car would have gotten by with two not ready, but I only had one. You can check the status of the registers with an OBD-II reader, as well.
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