I attached the information for this.
Did you flush the oil system of all dirt and debris? This is the most common issue for these codes along with the timing marks being incorrect.
I would suspect the solenoids could be the issue but needs to be confirmed. They get sludged up internally and will not allow oil flow for the timing adjustment.
Do you have a scan tool that can activate the solenoids so you can verify the timing change? If the ECM does not see the timing change, this is the resulting codes that will be set.
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Thursday, July 2nd, 2020 AT 4:19 AM