petemnz
New Member
- Joined
- Jan 28, 2013
- Messages
- 5
- Reaction score
- 4
- Points
- 1
- Location
- Auckland ,NZ
- Members Ride
- VE HSV clubsport
I had the P0016 code and wasted alot of time looking for electronic issues, believe the trouble code.
( camshaft position sensor (CMP) for bank 1, which detects camshaft rotation, is not corresponding to the crankshaft position sensor (CKP) signal.)
I changed crank sensor (behind the starter motor). I couldn't get the cam sensor out of the front cover. I also checked wiring loom with no change to code.
After removing timing cover I found the tensioner had disintegrated, and the now loose timing chain was eating thru the mounting bracket and the timing chain had jumped 2 teeth, car appeared to be running just fine. I'm glad I didn't ignore the trouble code as the chain had worn too.
I'm told the tensioner breaking is very common and if your lucky it just falls in the sump, I wasn't. But the chain would be very loose and slap around.
Note: Timing out by 2 teeth. ( which is the cause of the P0016 trouble code)
It is a prick of a job removing the oil pump pickup bolt (and even worse putting it back in without removing oil pan but it can be done.
Watch this link below (even harder in a Commodore, I had to use a mirror to see it and a wire to hold the bolt.)
LS Timing chain removal from ATD Garage
New cam gears, chain and damper block fitted trouble code gone.
I didn't replace the tensioner instead I used a damper block (top right) so no parts to break.
( camshaft position sensor (CMP) for bank 1, which detects camshaft rotation, is not corresponding to the crankshaft position sensor (CKP) signal.)
I changed crank sensor (behind the starter motor). I couldn't get the cam sensor out of the front cover. I also checked wiring loom with no change to code.
After removing timing cover I found the tensioner had disintegrated, and the now loose timing chain was eating thru the mounting bracket and the timing chain had jumped 2 teeth, car appeared to be running just fine. I'm glad I didn't ignore the trouble code as the chain had worn too.
I'm told the tensioner breaking is very common and if your lucky it just falls in the sump, I wasn't. But the chain would be very loose and slap around.
Note: Timing out by 2 teeth. ( which is the cause of the P0016 trouble code)
It is a prick of a job removing the oil pump pickup bolt (and even worse putting it back in without removing oil pan but it can be done.
Watch this link below (even harder in a Commodore, I had to use a mirror to see it and a wire to hold the bolt.)
LS Timing chain removal from ATD Garage
New cam gears, chain and damper block fitted trouble code gone.
I didn't replace the tensioner instead I used a damper block (top right) so no parts to break.
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