LS2 Cam Sensor, 1x or 4x??
Thread Starter
On The Tree
Joined: Jan 2011
Posts: 139
Likes: 1
From: Alamogordo, NM
LS2 Cam Sensor, 1x or 4x?? On my '06 GTO LS2, I understand that the cam sensor should be a 1x type, black in color. The one currently installed is tan which I also understand to be 4x type. I can't seem to find the correct one, however. When I search under an '06 GTO they all seem to be the tan 4x type. If I cross reference this part number it says it will also fit later gen IV engines, which tells me it is a 4x.
The part # on the one I have is 12585545. It also has a "4" on it. Is this a 4x sensor? Where can I get a 1x sensor?
BTW, when I test ran the engine a while back it was hard to start at times, (Backfiring) and had a check engine light. Can the engine even run with a 4x sensor? The crank sensor seems to be the correct one, a 24x type, black in color.
Thanks!
The part # on the one I have is 12585545. It also has a "4" on it. Is this a 4x sensor? Where can I get a 1x sensor?
BTW, when I test ran the engine a while back it was hard to start at times, (Backfiring) and had a check engine light. Can the engine even run with a 4x sensor? The crank sensor seems to be the correct one, a 24x type, black in color.
Thanks!
TECH Fanatic
Joined: Sep 2005
Posts: 1,584
Likes: 23
From: NYC
The part number is wrong... It's GM part # 12576407 for the 1x sprocket and even Amazon carries it. The engine will not run with a 4x sprocket so don't run it or you'll be sorry.
http://www.gmpartsdirect.com/results...umber=12576407
http://www.gmpartsdirect.com/results...umber=12576407
Thread Starter
On The Tree
Joined: Jan 2011
Posts: 139
Likes: 1
From: Alamogordo, NM
I'm just concerened about the sensor.The engine has never been apart so i would assume the cam gear/reluctor is a 1x style.
After more research i found that some are saying an early gen IV will run with the 4x sensor. But i also read that cam sensors can cause my starting problems so i was really hoping i found the problem!
After more research i found that some are saying an early gen IV will run with the 4x sensor. But i also read that cam sensors can cause my starting problems so i was really hoping i found the problem!
TECH Fanatic
Joined: Sep 2005
Posts: 1,584
Likes: 23
From: NYC
No 2004-06 GTO came with a 4x cam sprocket. If it's never been apart, it has a 1x sprocket/ 24 tooth reluctor wheel and it can't run with a 4x sprocket. I don't know where you are getting your information from, but I'm not sure that you know enough to be working on the motor.
Thread Starter
On The Tree
Joined: Jan 2011
Posts: 139
Likes: 1
From: Alamogordo, NM
No 2004-06 GTO came with a 4x cam sprocket. If it's never been apart, it has a 1x sprocket/ 24 tooth reluctor wheel and it can't run with a 4x sprocket. I don't know where you are getting your information from, but I'm not sure that you know enough to be working on the motor.
These engines came from the factory with blacks sensors, I have a black crank sensor and tan cam sensor, #12585545. I thought that was causing my starting problem but I saw a couple references from this and other forums that a 4x cam sensor will work with the 1x cam gear.
Do I need to use a 1x sensor or will a 4x sensor work?
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