[MySonic101]

I had the exact same problem and performed the same oil pressure test at the sensor port. If you have the Hengst oil cooler, take notice that there is a non-return valve, small black circular valve. Located at the bottom of the oil canister that the oil filter sits against and closes this valve when the cap is screwed in. The valve has three prongs and are very fragile and can break and lodge under the seat of the valve. This in turn keeps the valve open to flow back to the oil pan thus reduces oil pressure due flow diversion. When changing the oil. Remove that valve and make certain that valve seat on the oil cooler is clean as a whistle. My car performed as yours did prior to this correction as well as one other fix. This low pressure, if left undetected for a while, could have clogged your vvt actuators. There is a youtube video describing how to remove and clean these. These actuators adjust the timing and if clogged can give the symptoms you describe. I posted this problem here before with the title of the youtube video. I'll post the name in a minute.

 

[MySonic101]

There is a video by Auto Scholar with Mr B on YouTube. He explains the process of cleaning the actuators behind the vvt seleniods. It's titled Echotec 1.4 P0016 P0017 Try This First! If these actuators are gumed up it will affect the timing.

 

[15chevycruzeLTZ42]

There is a video by Auto Scholar with Mr B on YouTube. He explains the process of cleaning the actuators behind the vvt seleniods. It's titled Echotec 1.4 P0016 P0017 Try This First! If these actuators are gumed up it will affect the timing.

thank you very much I’m going to check this out and get back to you. Also how is the valve supposed to be installed. All I see is the spring facing up. Is that how it’s supposed to go? It’s this one, right?

 

[MySonic101]

That's it. The one on the right is oriented the way it goes in. Just remove the metallic shipping cover that protects the 3 holding prongs and using needle nose pliers insert into place. When installing filter, be certain the filter rotates freely in the cap placing it into the housing. If not the bottom of the filter could dislodge or **** the valve of its seat during installation.