The camshaft actuator solenoid is located on the back of the engine. The solenoid will be near the top of the engine just below the cylinder head.
I think you mean the Variable Camshaft Timing Solenoid or VCT Solenoid (F8CZ-6L713-AA) used on 4 cyl engine. It is located under the camshaft cover on the on the exhaust camshaft.
Raised hood left side of engine above the power steering pump
It is on the top of the engine on the passenger side. There are two of these. One for intake and one for exhaust.
" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components
The Camshaft position actuator solenoid controls the exhaust camshaft retard position. From 0 to 25 degrees. It is driven by a pulsed electrical signal from the ECM... much like that of a fuel injector. It is located on the front-passenger's side of the motor... on the head. Removal requires the partial removal of the steering pump. It is prone to failure mainly due to debris in the motor oil that flows into it. An oil change and/or removal of the solenoid actuator to clean of the screens of it can sometimes resolve a related DTC.
This has to do with the correlation of the camshaft and crankshaft as the computer sees them. Idle can be affected and the vehicle can even stall. The culprit is almost always the camshaft actuator solenoid valve, not the crankshaft position sensor or a cam position sensor.
" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components
" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components
"B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components
" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components
" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)symptomsHard startspoor idlestallingcausewrong camshaft timingWiring issues (harness/wiring) in intake timing control valve control solenoid systemSteady oil flow to VCT piston chamberFaulty timing valve control solenoid (stuck open)The fixReplace the VCT unit or one of its components