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Old 07-26-2004, 11:31 AM   #1
kastkc
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Join Date: Dec 2003
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Location: SW Chicago
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PBP

Default P0328, help!

I pulled the code and it means knock sensor 1 circuit high input. Sometime I can clear it, other times not. Only thing I notice is hesitation when accelerating between 2-4K rpn 1st through 4th gear, and its intermitant. The only pattern I am seeing is ,it is more noticable below a 1/4 tank of gas.

What is the cause of this? and how do I fix it? Any factual info would be great, Thanks
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Old 07-26-2004, 01:07 PM   #2
Subie Gal
GC84Ever
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you probably need a new knock sensor
"KNOCK SENSOR CIRCUIT HIGH INPUT"
this is your code and it will cause knocking and crap driving performance

get a new knock sensor/replace
and you should be good as new

Jamie
www.subiegal.com
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Old 07-26-2004, 02:51 PM   #3
kastkc
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I was hoping I wouldnt have to, but figured it was the cause and will look into it further. Any Idea on the cost and were to pick one up on the web?

Thanks

Ryan
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Old 07-26-2004, 04:19 PM   #4
jeffg
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also make sure that when you replace the sensor that you follow the install instructions to the "t" The torque spec is increadably low and over torqueing the bolt will kill the knock sensor.
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Old 07-26-2004, 08:47 PM   #5
munkis
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Im assuming you have more than 36k miles?

Jay
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Old 07-27-2004, 01:53 AM   #6
kastkc
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HTML Code:
Im assuming you have more than 36k miles?
yes, 39,800.

I did a datalog and found it pulled the timing 14 degrees where I felt hesitation when accelerating, between 3100 rpm (20 deg) 3800 rpm (6 deg) 4400 rpm (20 deg). My sample rate on the datalogger isnt the best, so I dont know if the timing was pulled any more than that.

Is this a definate indication of the problem being the sensor?

How involved is it to replace it? I hope to do it myself.

Thanks
Ryan
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Old 03-14-2006, 01:13 PM   #7
Hotrodguru
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Did you ever replace this, did it correct your problem? I'm getting the same code.

Guru
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Old 03-15-2006, 01:44 AM   #8
gnar-kill
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I had the P0328 for about 4 months...I kept on clearing the code but 50 miles later...it comes back. I replaced the knock sensor about 3 weeks ago and haven't pulled a code since. I don't really notice a difference before or after but atleast the light went away!
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