CM871 poor power and fuel econ

[Rawze]

(07-17-2022 )Grounded Pilot Wrote:  ... What sensors are used to give the ecm its torque and HP readings?
...

There are no sensors that do that directly or indirectly.

Just about every engine sensor can effect how it performs. The most relevant usually being the exhaust gas (back-pressure) sensor, the IMAP sensor, etc. etc.

Your descriptions point towards some kind of severe neglect of the engine sensors and systems in its past. This is usually coupled with a lot of mechanical neglect too.

also might want to do an overhead valve adjustment and injector leak tests too...
http://rawze.com/forums/showthread.php?t...8#pid67948