Confirmed Cam Phaser Death? P0011

SG4247 · 01-22-2025, 10:38 AM

Just a front crankshaft seal and tools to install it.

radensb · 01-23-2025, 08:31 PM

Well, this blows some of my previous ideas out of the water. Looks like the intake phasers are operational after all! I noticed that when I start the car and watch the scope, the timing of both cam phasers adjusts really close to what the FSM image shows in my original post. The left and right phasers sync with eachother like they should and move to a slightly retarded position relative to the crank. Then, shortly after, they move to the positions I captured in the original post.

I make this video of the scope.

This means that the phasers are not seized and are being controlled by the VVT solenoids. On one run, it stayed in the retarded position for several minutes and I notice misfires while in this state. Then it advanced the timing and the misses went away.

01-22-2025, 10:38 AM	#1 (permalink)
SG4247 Track Member Join Date: Oct 2016 Location: OKC Posts: 806 Drives: 2010 touring Rep Power: 7842	Just a front crankshaft seal and tools to install it. __________________ NA on E85 - 12.402 @ 112 mph 100 shot E85 - 11.589 @ 117 mph JWT C2 cams rev Base Circle & Titan Valves

01-23-2025, 08:31 PM	#2 (permalink)
radensb Base Member Join Date: Jan 2014 Location: California Posts: 165 Drives: 09 Nissan 370Z GM M6 Rep Power: 6722	New finding! Well, this blows some of my previous ideas out of the water. Looks like the intake phasers are operational after all! I noticed that when I start the car and watch the scope, the timing of both cam phasers adjusts really close to what the FSM image shows in my original post. The left and right phasers sync with eachother like they should and move to a slightly retarded position relative to the crank. Then, shortly after, they move to the positions I captured in the original post. I make this video of the scope. This means that the phasers are not seized and are being controlled by the VVT solenoids. On one run, it stayed in the retarded position for several minutes and I notice misfires while in this state. Then it advanced the timing and the misses went away.

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