REDUCED ENGINE POWER ON DASH ON MY 2017 CHEVY DURAMAX WHY IT CAN COME ON & WHAT I DID TO REPAIR IT 

Now thats how you do a video..Concise and to the point..great vid

STABILITRAC can throw a lot of ghost codes that can make repair facilities a lot of money and not even get close to the exact reason for the reduced engine power. We have a sudden attack of the TRAILER BRAKE CONTROLLER which then threw the REDUCED ENGINE POWER and CYLINDER 7 which was NOT defective. In my case we received; P0097, P00F4, P0113, P227B, P227D, P0207, P021A, and P1050, P0307. Just to get the TRAILER BRAKE CONTROLLER to SHUT UP I unplugged my trailer wire, pulled the trailer brake controller fuse and even the trailer brake charger fuse and it STILL continued. Turns out the wire harness was damaged from rubbing on the frame and had exposed wired that were shorting and grounding out that also caused other systems to malfunction. True these systems were in need of attention (NOX sensors and DEF Pump) however they had nothing to do with either the TRAILER BRAKE CONTROLLER or the DEF pump. We have also had the REDUCED ENGINE POWER just from the MASS AIR FLOW wire being loose. After replacing the NOX sensor, pulling the trailer brake switch, trailer brake wire, and trailer brake controller we repaired the wire put it all back in and the only thing that was left was the DEF Pump. SUDDENLY, we also needed a new particulate exhaust sensor too (imagine that).

EXCELLENT video, thanks Dan! Also great thatyou mentioned that you got DPF fluid codes as well. I got similar but some different codes. A local diesel shop guessed actuator, DFP heater and DPF pump. I'm hoping just actuator may solve this, now I know how to try.

Great video! Guess I've been lucky with the actuator. I'm at 433k miles and mine just started acting up

Very good video!!! I'm having similar codes like the 0046 and the 2599. I only have 80,000 miles on mine. I purchased the vane position sensor, but it doesn't match any of the sensors I have on the truck.

45 k on my 2018 L5P. Has ran great pulling our 30 ft travel trailer. All of a sudden last week went into low power mode. Shut down, restart, then drove another 100 yards and went into low / reduced power mode again. Pulled over and called for a tow to the local GM dealer. While waiting, the engine idled smooth, would Rev up smoothly and sounded great. Been in the shop now for a week ( impacted by the holidays), but what I am hearing from the tech the codes are pointing to a fuel pressure issue. He continues to converse with GM on what to do next. I wish I had more info on the codes being activated and will visit the dealer on Jan 3 to get the latest update.

Hi there! My 2019 Chevy Silverado 2500 hd 6.6 has engine reduced power, any knows about that thanks?

For whatever reason the Duramax with Allison trans can go crazy if a code is thrown. Recently had Fuel Temperature sensor go off which in returned caused my trans to go crazy. Took to a diesel performance shop to double check, they said its normal for a code to fly and them makes things crazy, I never new it would be that crazy.

How did you check the turbo?? To make sure it was not sticking??

My truck throwing same codes. Did the actuator swap keep your truck fixed?

Did you have to learn or program the actuator? I'm still looking for one for my truck. Everyone says national backorder.

This happened to me twice

😊😊

I have a 2018 GMC duramax, my power Engine reduce Came on also my dashboard also says continue driving clean filter, did your say that to?

If the actuator doesn’t move at all when you rev is that a sign that’s it’s bad. I think so but just wanted to be sure before I replace

Does it need programming after switching out this part?

My 2017 had this light come on while I was driving down the highway and I had to pull over, steering wheel locked up and it will not start

Anyone ever have that lever come off at the bottom where it connects to the turbo?

Why is that happen?

Any update? Still okay?

What is the part called