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Throwing Codes!!

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Old Sep 3, 2008 | 11:12 PM
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Exclamation Throwing Codes!!
Car threw a P0332 code...scanner said the follwing:

Knock Sensor 2
Circuit Low Input
(Bank 2)

I basically just have full exhaust and intake with some suspension stuff on my 2000 Z28 M6...just want to know what I have to do to get this taken care of. I need a tune don't i?
Last edited by L3THAL_Z28; Sep 3, 2008 at 11:32 PM.
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Old Sep 4, 2008 | 12:49 AM
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Originally Posted by L3THAL_Z28
Car threw a P0332 code...scanner said the follwing:

Knock Sensor 2
Circuit Low Input
(Bank 2)

I basically just have full exhaust and intake with some suspension stuff on my 2000 Z28 M6...just want to know what I have to do to get this taken care of. I need a tune don't i?
You have to remove your intake mani and clean/inspect/replace the knock sensors and knock sensor wire harness.
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Old Sep 4, 2008 | 01:22 AM
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Originally Posted by ss.slp.ls1
You have to remove your intake mani and clean/inspect/replace the knock sensors and knock sensor wire harness.
x2

On the up-side, since that sensor probably was failing for a while, you're likely to pick up a few degrees of timing by replacing it.
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Old Sep 4, 2008 | 10:39 AM
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cool, thanks guys. Is there a write up for this? I've only gone as far as removing the valve covers and would have no idea what Im looking for thanx
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Old Sep 4, 2008 | 11:31 AM
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Originally Posted by L3THAL_Z28
cool, thanks guys. Is there a write up for this? I've only gone as far as removing the valve covers and would have no idea what Im looking for thanx
Follow this for the removal of the intake manifold:

http://www.ls1howto.com/index.php?article=5

Once it's off, simply remove and replace the knock sensors. Use two screw drivers or a pair of pliers to gently squeeze on the wide ends of the gray connectors on the knock sensors. IIRC it should be a 7/8 socket to unscrew them. Check the wiring thoroughly.

Here's a picture:



Good luck with it.
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Old Sep 4, 2008 | 12:29 PM
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cool thanx bro...I'll be sure to hit u up if I run into any trouble
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Old Sep 4, 2008 | 12:30 PM
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hmm ive had that code thrown too, any chance it could lead to an oil leak? my car is leaking pretty bad
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Old Sep 4, 2008 | 12:35 PM
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Originally Posted by L3THAL_Z28
cool thanx bro...I'll be sure to hit u up if I run into any trouble
No problem man. Happy to help.

Originally Posted by hlaalu
hmm ive had that code thrown too, any chance it could lead to an oil leak? my car is leaking pretty bad
Unfortunately, no.
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Old Sep 4, 2008 | 12:51 PM
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damn, oh hey i just found out im 99% sure im coming home next weekend
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Old Sep 4, 2008 | 12:53 PM
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Originally Posted by hlaalu
damn, oh hey i just found out im 99% sure im coming home next weekend
Hit me up when you're back in town. Are you bringing the Hummer engine with you?
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Old Sep 4, 2008 | 01:05 PM
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lol i wish. that thing was gone we didnt even get to loot it and it was only a 4cyl how gay is that for a hummer... no wonder it flipped
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Old Sep 4, 2008 | 01:42 PM
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Originally Posted by hlaalu
lol i wish. that thing was gone we didnt even get to loot it and it was only a 4cyl how gay is that for a hummer... no wonder it flipped
I'm pretty sure it was a 6 cyl, it would still be fun to put that in a buggy.
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Old Sep 4, 2008 | 02:18 PM
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Originally Posted by ss.slp.ls1
I'm pretty sure it was a 6 cyl, it would still be fun to put that in a buggy.
nope had to have been a 4, just had one exhaust manifold
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Old Sep 4, 2008 | 02:21 PM
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Originally Posted by hlaalu


nope had to have been a 4, just had one exhaust manifold
We're both wrong, its a 3.7 liter inline 5.
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Old Sep 4, 2008 | 02:25 PM
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Originally Posted by ss.slp.ls1
We're both wrong, its a 3.7 liter inline 5.
wtf ive never heard of such a thing haha who would want that haha
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Old Sep 4, 2008 | 02:26 PM
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Originally Posted by hlaalu
wtf ive never heard of such a thing haha who would want that haha
LOL, I think thats the same thing or similar to what comes in the Colorado.
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Old Sep 4, 2008 | 02:40 PM
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and hummer is suppose to be all big and bad *** too
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Old Sep 4, 2008 | 02:51 PM
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Dont worry george i gotta remove my intake to. I just dont want to because i dont have a torque wrench, hahaha
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Old Sep 4, 2008 | 02:55 PM
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what do knock sensors do anyways?
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Old Sep 4, 2008 | 03:12 PM
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Originally Posted by ReFtheMC
Dont worry george i gotta remove my intake to. I just dont want to because i dont have a torque wrench, hahaha
You don't need one, the intake manifold is torqued to 89 in.lbs ~ 7 ft.lbs ~ hand tight. It doesn't take much to get the plastic gaskets to seal.

Originally Posted by hlaalu
what do knock sensors do anyways?
From what I know, they sense vibrations in the motor (knocking) and retard timing to compensate.
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