Lacking or loss of power up hills intermittently and engine light on all the time.
Owner just purchased vehicle.

Previous owner told him that it was “just a sensor, nothing to worry about” and yes, he believed him.

He had gone to a number of mechanics, a couple were not even interested at looking at it, another said he did not have the correct scan tool.

One mechanic told him it was a stretched chain without even having to interrogate system as there was a definite rattling noise at the time.