i had received a P003E error and learned that there is a LR TSB for this related to an oil restrictor issue, this restrictor is in the front of the cylinder head just below the input phaser.
it seems the CPS Camshaft profile switching (CPS) solenoids has some kind of insert which I suspect may also be part of the oil flow process. Does anyone know as i cant seem to find any details.

 

The item with the black circle, i cant seem to find any details on this. Does anyone know?

 

That sensor in blue in first photo is it located at rear of engine ? If so could be the boost sensor

 

The sensor in the top image is one of the Camshaft Profile Switching Solenoids. Here are the possible causes of the P003E code:




Here is the relevant extract from the Workshop Manual describing the Camshaft Profile Switching Solenoid operation:





Graham

 

Thanks and agree but the workshop and other docs do not describe what part this is or its function. The workshop has the image of the component but does not reference it. My research yesterday indicates that it might be an oil control valve or a one way control valve. im looking to understand the function of this device to see if it could be a possible cause of my code.

 

The description of the Camshaft Profile Switching Solenoids in the Workshop Manual page I posted in #4 couldn't be any more succint.

Graham

 

Thanks, i am well aware of how the CPS works, my questions is what does the image i had put in above do, whats its function. Below is the text and it does not state what this device does. That is what i am looking to determine, what is this device, is it a check valve or a one way valve and what happens if there is an issue with this device? "The CPS (camshaft profile switching) system switches the intake valves between two cam profiles which have different lift

and period. The low lift profile improves driveability and emissions at lower engine speeds. The high lift profile improves

power and torque output at higher engine speeds.

The intake camshafts have three lobes for each valve. The two outer lobes have identical profiles that produce the high lift of

10.53 mm (0.415 in.). The central lobe produces the low lift of 5.50 mm (0.217 in.). Switching between cam profiles is

performed by a switchable tappet on each intake valve. The switchable tappets are operated by engine oil controlled by a

CPS solenoid on each cylinder head. Operation of the CPS solenoids is controlled by the ECM.

Camshaft Profile Switching Solenoids

The CPS solenoids control the supply of engine oil pressure to the locking pins in the switchable tappets, to switch the

tappets between the two cam profiles.

A CPS solenoid is installed on the rear of each cylinder block. Each CPS solenoid has a pintle installed in a sleeve, which

incorporates oil inlet and outlet holes. The sleeve is installed at the junction of oil galleries in the cylinder head, with the oil

inlet and outlet holes aligned with the galleries. Movement of the pintle in the sleeve controls a connection between the oil

galleries. When the CPS solenoid is energized, the pintle connects an oil supply gallery to the gallery along the outboard side

of the switchable tappets. When the CPS solenoid is de-energized, the oil gallery along the outboard side of the switchable

tappets is connected to drain.

 

This is the part I’m trying to get details on. Not the CPS but part of the oil flow from CPS to the tappets.