2005 496mag HO knock sensor

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Auburnbuilder
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2005 496mag HO knock sensor

Post by Auburnbuilder »

Just curious, does anyone know if there are 1 or 2 knock sensors on the 496mag?
Starboard side I can see one easily, not so easy on to determine on port side.
2005 Cobalt 255
496 MAG HO
Lake Champlain, VT
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cmattj
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Re: 2005 496mag HO knock sensor

Post by cmattj »

Auburnbuilder wrote: Sat Aug 14, 2021 8:56 pm Just curious, does anyone know if there are 1 or 2 knock sensors on the 496mag?
Starboard side I can see one easily, not so easy on to determine on port side.
There are two under the cylinder head.. port and starboard . Look for a stud and nut.

Question is why do you feel you need them. They will set codes if your running 87 or even 89 octane which is normal for time adjust during your key cycle.
Also poor connection, and pcm not seeing them can cause codes and a timing retard.

They are always monitoring so check after a 91 octane fill up.

Carry on and good luck.👍🏼
2008 272 , 496 HO fo SHO

California Delta
Table Rock Lake


#FARCON
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