CM871 poor power and fuel econ

[Rawze]

(04-08-2022 )Grounded Pilot Wrote:  ...
It also has another bad metering actuator (under 10,000 miles since replaced with Cummins reman) according to the cylinder cutout test. I’m going to test the wiring to that today before I replace it.

has anyone bothered to do an injector leak test on it>?...
I doubt it... and that would be exactly why it keeps showing bad actuators.
ref: http://rawze.com/forums/showthread.php?t...8#pid67948

also, on Pete's and KW's.. they are notorious for the cab plugs to show problems with the TPS .. it is a known issue especially if someone is letting their truck get washed by those truck-wash places and letting them open the hood and spray inside around the engine area...

Here is a fine example of someone having the exact problems you are describing, even going as far as wanting to replace their ecm after going thru several TPS sensors, etc... .. just like your saying...
http://rawze.com/forums/showthread.php?t...1#pid12551