Help! 2019 Chevy Spark 1.4L-idling, drivability issues. I own a spark with 77K miles which keeps throwing p0014/ B Camshaft position timing over advanced, p0017 Crankshaft position camshaft position correlation bank 1 sensor B, and p0507 idle air control system rpm codes at the same time.
I have changed (the parts changer in me) one of the cam position sensors, a crank PS, a variable timing solenoid, the PVC valve, the throttle body and the idle air sensor . I have checked the other sensors, and checked for vacuum leaks (3X) but it continues to throw those codes and the idle speed jumps from 1000 to 2000, occasionally stalling at lights or upon start-up.
The dealer wanted to pull the valve cover to see if everything'* in place but it runs good otherwise so I felt it would be a thousand dollars wasted. In desperation I pulled the valve cover and saw a lot of sludge build up so I pulled the oil pan and cleaned and flushed the sludge out the best I could.
What am I missing? I'm ready to put another engine in it thinking that it'* been run hard and not maintained, (I just acquired it). That could rule out all but the electrical, but that'* kind of crazy. Please, smarter minds prevail. thank you

Not having regular oil changes will cause big problems with these modern engines with VVT. A New engine may be the best or do a rebuild of yours.

If it can't get the cams phased properly it will run poorly, and it probably has some provisions built into its programming to help it try to keep running in such a situation so that it can be taken to a mechanic soon.

Here'* what I see:

- The car is a 2019, therefore about two years old
- The car has 77,000 miles on it, therefore 38,500 miles per year
- 38,500 miles per year is a lot of miles, ~3,000 per month

A car that gets driven that much probably didn't do much of it slowly. For it to be sludged up that bad I'd guess it seldom or never got an oil change. Sludged up cam phasers will generate your code.

If you can drive it, I suggest you de-sludge it as best as you can then put fresh oil and filter in it and take it out on the highway for 50 miles on the highway. Then change the oil and filter and take it out for another hundred miles and see if it starts to clear up. Maybe 200.

Fresh oil might work its way into sludged places and fix it.

Otherwise you might have to dig deeper. If nothing else is wrong with it besides what you mentioned, it'd probably be worth troubleshooting.

When these things get sludged the only proper fix is rebuild.

5 gallons of warm kerosene in the crankcase will do wonders. LOL

Trouble code P0014 Exhaust (B) camshaft position timing over-advanced
Trouble code P0017 Crankshaft position- camshaft position correlation Bank 1 sensor B
Codes keep on returning, it was recommended to clean sludged up cam phasers. anyone have procedures on cleaning these phasers?
Thank you

Do you know how these work and how to get at them?
Do you have a good scan tool?

Could be a bad solenoid.

Who recommended this?

Did they actually look at the oil or under the cam cover?

How many miles on this vehicle?

How many miles on the current oil?

How many miles (average) between oil changes on this car?

CatheralCub
Thanks for shining your wisdom on my posts. I've been working trying to get this 2019 spark 1.4 running right for a few months now. 80k and was serviced poorly before I ended up with someone else'* problem. I'm seeing that the 0016 and 0017 codes are being thrown because the timing chained jumped a tooth.
What I need now is help finding the right parts kit and the tool to align the cams. Any input would be appreciated.
Thanks
Craig

You're welcome!

. . . and . . . ummm . . . part of assisting with troubleshooting is getting a complete picture.

How was the jumped tooth properly diagnosed?

. . . and:

​​​​​​​ . . . ?