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Old 06-27-2016, 10:56 PM   #1
aod92
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Code po332

My truck has a po332 code which is for a knock sensor. My knock sensors are new and My motor has never gotten wet so I know that's not the problem. I do notice my truck makes a lot of lifter noise. Could that be causing a false reading? My truck also seems to be sluggish. Would this cause a low power problem? My truck just has a base tune in it and I'm bringing it to be tuned in the next couple of weeks. I want to get these bugs worked out before it hits the dyno
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Old 06-27-2016, 11:49 PM   #2
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Re: Code po332

False? We don't know its false yet, you might actually have knock....

How bad is the lifter noise, and did you do heads/cam or something like that? If you have noisy lifters (beyond the normal "ls motors are noisy" level), then you probably have a mechanical problem. Ruling out a cause of knock while an actual defect exists won't get us anywhere.
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Old 06-28-2016, 03:46 AM   #3
truckdude239
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Re: Code po332

I just went though thiz on my suburban . I replace my knock sensors when I did my intake gaskets using bwd sensors from Advance Auto Parts a new harness from Dorman. About 3,000 miles I have my check engine light come on for the p0332 knock sensor too low signal + short. I had to put my intake back off and I replace the knock sensors with the OEM Delphi and new harness harness. So far it has not come back I found out that the aftermarket knock sensors not that great
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Old 06-28-2016, 07:17 AM   #4
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Re: Code po332

Brew city it does have a cam. Truck dude, those are the same knock sensors I used. Where do you buy the Delphi sensors...Dealer only?
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Old 06-28-2016, 10:38 AM   #5
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Re: Code po332

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Originally Posted by aod92 View Post
Brew city it does have a cam. Truck dude, those are the same knock sensors I used. Where do you buy the Delphi sensors...Dealer only?
You may need to adjust the Knock threshold in the tune do to the cam and headers...
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Old 06-28-2016, 11:20 AM   #6
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Re: Code po332

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You may need to adjust the Knock threshold in the tune do to the cam and headers...
That's something my tuner can do correct?
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Old 06-28-2016, 09:24 AM   #7
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Re: Code po332

No i ordered them from advance auto made them warranty them out it took them about a week to get them they where actlay cheaper then the bwds i bought the dephi number is AS10017 i paid 46 for them where are the advance brand was 56 each, i made them warranty the knocks sensors the harness and intake gaskets when i redid mine. but i also have a comerical account so they wanted to keep me happy, but it would not be unreasonable for a walk in customer to ask for all that to be warrantied out
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1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
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Old 06-28-2016, 09:29 AM   #8
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Re: Code po332

https://www.amazon.com/Delphi-AS1001...n+knock+sensor

heres an even better deal
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1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
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Old 06-28-2016, 10:31 AM   #9
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Re: Code po332

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Awesome. Thanks man
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