Replaced camshaft sensor and still throws a code?
Dec 2, 2023 at 3:04 AM
2017 Nissan Pathfinder P34C4 Code
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A camshaft position actuator control B1 ("A" camshaft position actuator control circuit driver current/temperature too high bank 1)
This code is for the camshaft actuator not working correctly, this can be due to low engine oil or if the oil needs to be changed. Can I ask if the engine is making noise at idle? If you are not sure, can you load a short video of the engine idling? That way I can tell if there is something abnormal going on mechanically, like a bad camshafts position actuator. Also let's remove the camshaft oil control valve to see if the screen is clogged.
Threshold:
The electric intake valve timing (IVT) control module detects malfunction of the electric IVT control actuator internal temperature sensor
The electric IVT control module detects malfunction of the electric IVT control actuator internal current sensor
POSSIBLE CAUSE
Electric intake valve timing (IVT) control actuator (bank 1)
Internal temperature sensor has malfunction.
Internal current sensor has malfunction.
I would check both valve timing (IVT) control actuators on each side. There should be a screen on the end of the control valve which come become clogged with gunk and metal shavings. Check out the images (below). Please let us know what happens.
This code is for the camshaft actuator not working correctly, this can be due to low engine oil or if the oil needs to be changed. Can I ask if the engine is making noise at idle? If you are not sure, can you load a short video of the engine idling? That way I can tell if there is something abnormal going on mechanically, like a bad camshafts position actuator. Also let's remove the camshaft oil control valve to see if the screen is clogged.
Threshold:
The electric intake valve timing (IVT) control module detects malfunction of the electric IVT control actuator internal temperature sensor
The electric IVT control module detects malfunction of the electric IVT control actuator internal current sensor
POSSIBLE CAUSE
Electric intake valve timing (IVT) control actuator (bank 1)
Internal temperature sensor has malfunction.
Internal current sensor has malfunction.
I would check both valve timing (IVT) control actuators on each side. There should be a screen on the end of the control valve which come become clogged with gunk and metal shavings. Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
Dec 2, 2023 at 9:54 AM
Hi Ken, would you mind pointing out (what number in the pictures) where this screen is and what the actuators are? Getting a randomly repeating P34C4 code after doing the timing chain at startup. vehicle runs normally.
Apr 29, 2024 at 9:31 AM
Did you replace the camshaft actuators? They go out often. They are #4 and #9 in the diagrams. I would remove the oil control valves and see if the screen is clogged, which also happens regularly.
Apr 29, 2024 at 10:45 AM
Thanks for the tips. Will give that a go. Which one is Bank 1 (pertaining to P34c4 code), left or right (assuming left). Wondering if I accidentally got a bit of sealant dripped on the actuator when putting the cover back on.
Apr 29, 2024 at 11:52 AM
nevermind on the banks i see you've attached a legend that explains it. Thanks for the help!
Apr 29, 2024 at 11:53 AM
Let us know what you find.
Apr 29, 2024 at 11:54 AM
Suggested Repair
Check engine oil level and condition, then remove the camshaft oil control valves and inspect their screens for clogging. Inspect or replace the electric intake valve timing actuators, especially bank 1 (diagram items 4 and 9), since P34C4 indicates an internal temperature or current sensor fault in that actuator.
Conversation Summary
A 2017 Nissan Pathfinder still set P34C4 after the camshaft sensor was replaced. The code returned randomly at startup after a timing-chain job, although the vehicle otherwise ran normally. The expert explained that P34C4 concerns the bank 1 electric intake valve timing actuator and recommended checking oil condition, inspecting the oil-control-valve screens for debris, and checking or replacing the actuators, which commonly fail.