My DPF light just stays on..

Where is the doser injector location? I would like to clean it.

 

Cleaned the doser, got the DOC, and DPF cleaned with all new sensors installed.. Everything together was about $1200.. Took it on an 8hr trip and all is well so far.. I’m going to drive this truck until the wheels fall off.. Then I’ll get one with a Cummins in it for sure!

 

Update.. On the 20th the DPF light came back on.. I stopped it did a 13min regen and it took about 10min to get hot.. Drove for 2hrs made it to my destination the light was on again.. I did another regen.. It was good for the rest of the day.. This morning it comes on again as I‘m passing another truck.. I drove it for 2hrs with the light on.. Finally did a regen and it lasted 13 min and did not get hot.. The light stood on even after finishing.. I said screw it I'm going to the dark side I’m done.. I drove 2 more hours and did 2 back to back regens literally.. On the second one it got really hot and lasted about 30min.. The light went out.. Keep in mind the truck has not lost power thru out this endeavor.. Tomorrow I’m going on a 6hr trip with 42k lbs loaded going thru the hills on I-55.. So it’s gonna get put thru a torcher test tomorrow.. I’ll keep y’all updated..

 

Update.. On the 20th the DPF light came back on.. I stopped it did a 13min regen and it took about 10min to get hot.. Drove for 2hrs made it to my destination the light was on again.. I did another regen.. It was good for the rest of the day.. This morning it comes on again as I‘m passing another truck.. I drove it for 2hrs with the light on.. Finally did a regen and it lasted 13 min and did not get hot.. The light stood on even after finishing.. I said screw it I'm going to the dark side I’m done.. I drove 2 more hours and did 2 back to back regens literally.. On the second one it got really hot and