knock sensor
Thread Starter
Racer
Joined: May 2021
Posts: 384
Likes: 52
knock sensor
Hi .. what the good knock sensor and harness to go with ? l know NAPA are good but they are pricey and AC Delco are defected for now. Any other options ? How about dorman with harness any info ?
Pro
Joined: Sep 2013
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Moderator, Tech Contributor
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From: Cape Coral, Florida
Drifting
Joined: Sep 2022
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From: In the woods
2024 C5of the Year Finalist - Unmodified
I can say this. I just replaced both my K/sensors and harness with the recommended high dollar NAPA units, that was a week ago. Before I changed them I was getting a P0332 low circuit bank two. Now every time I drive it, sometimes more than once during a single drive I get a P0327, low circuit bank one. Needless to say I'm not real effing happy about this especially as noted the NAPA ones are VERY pricey (over $70 bucks each).
Thread Starter
Racer
Joined: May 2021
Posts: 384
Likes: 52
I can say this. I just replaced both my K/sensors and harness with the recommended high dollar NAPA units, that was a week ago. Before I changed them I was getting a P0332 low circuit bank two. Now every time I drive it, sometimes more than once during a single drive I get a P0327, low circuit bank one. Needless to say I'm not real effing happy about this especially as noted the NAPA ones are VERY pricey (over $70 bucks each).
Drifting
Joined: Sep 2022
Posts: 1,785
Likes: 2,033
From: In the woods
2024 C5of the Year Finalist - Unmodified
I do have an update. Went out just to have the CEL come again. Read the code in the parking lot, both banks low circuit input. Tells me it is the harness or the connection. Seeing I just put this all together last week I'll start checking connections tomorrow. To the OP, didn't mean to hijack your post.
Melting Slicks
Joined: Dec 2018
Posts: 2,641
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From: Orange County, CA
In the last 2-3 years there have been countless reports of people getting knock sensor fault codes after installing AC Delco knock sensors.
On my car I put in AC Delco units "while I was in there" screwing with valley cover stuff and subsequently was treated to a CEL for knock sensors. My old ones were fine (but I had trashed them). NAPA knock sensors fixed the issue completely for me.
On my car I put in AC Delco units "while I was in there" screwing with valley cover stuff and subsequently was treated to a CEL for knock sensors. My old ones were fine (but I had trashed them). NAPA knock sensors fixed the issue completely for me.
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Drifting
Joined: Sep 2022
Posts: 1,785
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From: In the woods
2024 C5of the Year Finalist - Unmodified
Egg on my face. Pulled the intake this morning and what do I find.... I managed to get the harness pinched between the bottom rail of the manifold and the lip of the valley cover. Smooshed the **** out of the wires with actual wire exposed through the insulation. Pretty sure that is my problem 
, yes I can be a dumbass at times. Vato Zone had another on the shelf, let's see if I can put this one without effing it up too..
, yes I can be a dumbass at times. Vato Zone had another on the shelf, let's see if I can put this one without effing it up too..
Thread Starter
Racer
Joined: May 2021
Posts: 384
Likes: 52
Egg on my face. Pulled the intake this morning and what do I find.... I managed to get the harness pinched between the bottom rail of the manifold and the lip of the valley cover. Smooshed the **** out of the wires with actual wire exposed through the insulation. Pretty sure that is my problem , yes I can be a dumbass at times. Vato Zone had another on the shelf, let's see if I can put this one without effing it up too..
, yes I can be a dumbass at times. Vato Zone had another on the shelf, let's see if I can put this one without effing it up too..
Drifting
Joined: Sep 2022
Posts: 1,785
Likes: 2,033
From: In the woods
2024 C5of the Year Finalist - Unmodified
^^ I cannot say for sure, however I can say if the harness is damaged by a nitwit putting it back together even the best ones will not get the signal to the PCM. I did drive it for around 30 miles after the new harness without incidence. Based on the experience of others I would agree the NAPA ones are preferred.