CM870 power issues

[Rawze]

(12-08-2022 )kamiar Wrote:  Yes i agree 100% and am well aware of these issues, i have downloaded the calibration from quick-serve by the ESN, even tried another good used ecm and programed it with same ecm code, same result.

But to be honest with you, i am not sure about the mechanical side of the things, someone else has put this motor together, so i am not sure if this cam wedge setting or timing etc can cause this higher than normal hp without trowing a code!

like I said.. monitor the mg/stroke at full operating loads and see of the ecm is commanding that much power. If it is not indicating this then there is a mechanical problem where fuel is getting in that is not accounted for and should not be. Maybe wrong injectors, maybe slipped cam?.. I doubt that though.. or maybe wrong solenoids for fueling?.. or some other thing. Also check the fuel pressure sensor to ensure its feedback is correct vs. a pressure gauge.