Time to fix engine codes, need advice

[natemach97]

Hey all, it's finally time for me to fix all the problems my S40 has accumulated. 2010 S40 with 93,200 miles, base 2.4L 5 cylinder, auto trans. At about 81,000 miles the check engine light popped on while visiting my fiancess grandma. No problems with the car beforehand; we've had it since 72,000 miles and have done regular maintanece. I screwed up and put conventional oil in it and ran it for about 500 miles before going back to synthetic and changing filter; that was at about 79,000 miles. Drove it like it was and kept doing the regular maintanece to it but never hooked it up to a code reader until recently and it spit out P0011 "Camshaft timing over-advanced bank 1". In the time between the car has also started to make a slight ticking noise that increases with acceleration and disappears around 3,300 RPM. Coming from the passenger side, under the valve cover I think. From what I've been able to find, I think I need to change the Camshaft position sensor, change oil and filter, and possibly check the CVT or VVT solenoid, whichever this car has. I'm not sure what to do about the ticking at all. I can hook the car up to my code reader tomorrow and post pictures in the comments at some point. Does anyone know if this is a good place to start or have any knowledge on this subject? I'm pretty handy and can do the work, I'm just used to wrenching on older vehicles; I lucked into this awesome car and need to get it in better shape.

[RickHaleParker]

ECM-640A (P0011) Camshaft control, intake. Signal too high or too low.


Diagnostic trouble code (DTC) information ECM-640A

Condition
The engine control module (ECM) checks that the actual camshaft angle position (actual value for the camshaft shift angle) corresponds to the requested angle position (target value for the camshaft shift angle). The diagnostic trouble code (DTC) is stored if the value for the actual camshaft angle position is higher (signal too high) or lower (signal too low) than the control module target value for the camshaft angle position.
The diagnostic is active when the engine is running, engine at operating temperature.

Substitute value
None.

Possible source
Signal too high

• Poor engine oil quality
  Damaged camshaft reset valve
  Mechanical fault in the continuous variable valve timing (CVVT) unit.

Signal too low

• Short-circuit to supply voltage in the signal cable
  Poor engine oil quality
  Damaged camshaft reset valve
  Mechanical fault in the continuous variable valve timing (CVVT) unit.

Fault symptoms

• Malfunction indicator light (MIL), on
  Uneven idle
  High emissions
  The engine cuts out when driving.