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Another P0332 code issue

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Old Aug 21, 2025 | 06:50 PM
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Default Another P0332 code issue

So I just finished some work on my 02 A4, was getting an intermittent P0332 code prior to working on it. I replaced both the rear KS (AC Delco) as well as the harness as it had a small kink in the #2 KS lead. Have driven it several hundred miles since completing the work with no issues until today. Coming home from work (50 mile one way trip) about halfway home got the code again. Was able to clear the code and it did not reappear for the rest of the drive. I did tape down the harness prior to reinstalling the manifold. Any suggestions as to a possible resolution?
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Old Aug 21, 2025 | 08:31 PM
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Old Aug 21, 2025 | 08:59 PM
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Originally Posted by OHRedSled
So I just finished some work on my 02 A4, was getting an intermittent P0332 code prior to working on it. I replaced both the rear KS (AC Delco) as well as the harness as it had a small kink in the #2 KS lead. Have driven it several hundred miles since completing the work with no issues until today. Coming home from work (50 mile one way trip) about halfway home got the code again. Was able to clear the code and it did not reappear for the rest of the drive. I did tape down the harness prior to reinstalling the manifold. Any suggestions as to a possible resolution?
Where did you get the "Delco" knock sensor from?
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Old Aug 21, 2025 | 09:09 PM
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ALL AC DELCO or DELPHI knock sensors are junk IMO.

Every single one that I have used (hundreds of dollars worth on 3 different vehicles have ALL thrown codes).

It is insanely frustrating.
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Old Aug 21, 2025 | 11:31 PM
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I ordered the sensors from Rock Auto. Saw a thread earlier referencing the NAPA sensors, may have to go that route.
Rob, thanks for the diagnostic info, will have to try my hand with a meter.
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Old Aug 22, 2025 | 12:15 AM
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If you go the NAPA route there is a very specific part number that is USA made and the reviews are listed as finally a knock sensor that doesn't throw codes. I'll see if I can find the part number in the morning.

Also, Autozone used to sell a USA made knock sensor that is identical to the NAPA sensor but they are all but dried up. My son found one a couple weeks ago but we haven't been able to find another.
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Old Aug 22, 2025 | 07:47 AM
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Echlin Ignition, part # ECH DKS238......and take that tape off. The harnesss is not supposed to be taped down.

Last edited by lucky131969; Aug 22, 2025 at 07:52 AM.
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Old Aug 22, 2025 | 08:30 PM
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i remember seeing on here a lot of people where having success with these part numbers.

Napa ECH DKS238 Knock Sensor
Dorman 917-033 Knock Sensor Harness
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Old Aug 22, 2025 | 09:18 PM
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Originally Posted by eyekyu
i remember seeing on here a lot of people where having success with these part numbers.

Napa ECH DKS238 Knock Sensor
Dorman 917-033 Knock Sensor Harness
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Old Aug 22, 2025 | 09:50 PM
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Interestingly enough the part number we used was NAPA MPE DKS238SB

Not quite sure what the difference is other than one has a black connector and the other is white.

I just know the black top unit says made in the USA on it.

From the actual box.


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Old Aug 23, 2025 | 12:07 PM
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IDK what else you can do except go with the statement "Made in USA" on the box. But with todays greedy business people, it wouldn't surprise me to find the box is the only thing made here!! But, like I said, what else can you do.....
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Old Aug 23, 2025 | 05:19 PM
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OFF TOPIC:
BTW, I'll get those magnets to you soon, Steve. Sister in the hospital for a week and best friend just had quadruple bypass!!
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Old Aug 23, 2025 | 07:02 PM
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NAPA sensors ordered, thanks guys!!!!
2 questions:
Is the car currently driveable, and are the intake manifold gaskets reusable?
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Old Aug 23, 2025 | 08:40 PM
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Originally Posted by OHRedSled
NAPA sensors ordered, thanks guys!!!!
2 questions:
Is the car currently driveable, and are the intake manifold gaskets reusable?
Yes and yes.
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Old Aug 23, 2025 | 10:09 PM
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Originally Posted by OHRedSled
are the intake manifold gaskets reusable?
i would just order new ones IMO , fel-pro kit is like $20.
its probably over kill but I siwtched my intake manifold bolts to arp as well.
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Old Aug 23, 2025 | 11:37 PM
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Originally Posted by eyekyu
i would just order new ones IMO , fel-pro kit is like $20.
its probably over kill but I siwtched my intake manifold bolts to arp as well.
I just did both of those to mine while it was apart, great minds…!
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Old Aug 23, 2025 | 11:38 PM
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Originally Posted by lucky131969
Yes and yes.
Again, thanks! That’s what I was thinking, but never hurts to ask to avoid one of those OH **** moments!
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Old Aug 24, 2025 | 06:58 AM
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Originally Posted by OHRedSled
Again, thanks! That’s what I was thinking, but never hurts to ask to avoid one of those OH **** moments!
Make sure to use blue loctite on the intake bolts, or the torque will be wrong.
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Old Aug 24, 2025 | 06:51 PM
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Will do!!!
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Old Sep 1, 2025 | 05:38 PM
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My new USA made NAPA knock sensors are here. Did some checking and had 266 Kohms at the harness end of the sensors, way above what the diagnostic flow chart indicates should be there. Just to check, the connector going to the PCM was showing 9.56 kOhms, so I think that side is good. Installed the new sensors, torqued to 15 ft/lbs and reinstalled my harness which was just purchased earlier this month and I'm still getting 199.3 kOhms. Am I reading my meter incorrectly, or is maybe my new harness bad? The harness I just installed is the Dorman harness.
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