OTR PROFORMANC TOOL

Just wanted to say if you're a owner operator and still have your Def system and don't own this tool you're truly missing out. This thing has saved my butt about half dozen times.

 

Absolutely every time that light come on i do forced regen on a couple times the fault came back but I was able to get home and fix the problem. Instead of being stuck on the road. Great tool

 

Yes it Would come back about a week after I did a regan. I replaced the outlet nox cause I had this coad along with that one. I had 850,000 miles also thought it made since to be going out.
Went a couple months coad came back this time with a inlet coad replaced that one then 2 months later got the def quality again so I changed the def pump and put a awning kit it. Been 6 months no more problems.
If I hadn't of had of had the OTR TOOL that would of been a nightmare I was never done longer then a hour trying to figure that #### out made over relatively painless.
For 2 nox sensors a pump and a wing kit ran me about $1600 in parts.I did all the labor it is pretty easy.

 

May also want check gasket and for build up at def pump inlet. For some reason I was build up def right where it injected into the one box I thought maybe the injector had lost some power or maybe def was seeping out so I put in a new pump and awning kit for good measure I had 850,000 miles figured it was time. Good luck def problem suck.