X15 1659 Code

[Therealarw]

(11-02-2023 )Rawze Wrote:  ...
ECM monitors the sound waves via the sensor and compares them to the cylinder that was supposed to make them. -- yup, it actually does this.. and after-garbage exhaust pressure sensors like dorman, etc.. are notorious for throwing false cylinder mis-fire codes.

Wow I didn't know these efficiency series X15's were so intricate... I ended up figuring out the issue. It was the exhaust manifold tube, had exhaust coming out of the fitting, it had cracked and was just letting a bunch of exhaust come out. I also cleaned out the passage way. Reminds me of how the DD13's delta p sensors clog up