Reduced Engine Power after knock sensor SWAP, HELP!
 

HEY All!

I recently replaced both knock sensors and harness, coolant temp sensor, and thermostat.

After I reassembled and started the H2, it ran fine, then sputtered and quit. Shut down, restart ran fine. Got it home, started it up next morning, REDUCED ENGINE POWER on display and a CE light, no code reader though.

I ran through the entire repair only thing I found was the Coolant sensor pigtail retainer clip is broken so i thought that maybe that would cause the issue, so I rigged it with electrical tape and...no change. This may still be an issue, not sure!

Also, there is a nipple on the back drivers side of the intake manifold, it has a red ring, is there supposed to be a vacuum line on that fitting? I think on other 6.0 applications there is? From what I'm finding it a brake booster line? Thoughts?

Any help would be great! this is killing me!!!!

Go to an auto parts, get the code read and post the actual code here.

OK....so after an insane amount of research and reconnecting connectors. I removed the air duct from the throttle body and there was a friggin Rock Auto magnet (the ones they send you in there packages) jammed into the butterfly flapper!!! HOLY CRAP?!? no idea how the heck this thing made it into my air duct, but damn.

needless to say, remove said FOD and boom running like a champ!

thank you for the rely though!

Your fortunate that the magnet didn't meet a piston.