2014pinnacle Posted November 29 Share Posted November 29 Hi guys I have 2016 cxu613 I’m getting codes daily for my scr and nox sensor codes. I’m getting P0eb and p0225e I have replace both nox sensors I get about 2 weeks out of them then they start throwing nox sensor codes and I get these codes now twice a day what’s causing it? What else should I be looking at? The gauges run where they should egt never goes over 650 coolant temp never goes over 200 usually sits at 180 unless I get into a hard pull. Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/ Share on other sites More sharing options...
880joe Posted December 1 Share Posted December 1 How old is your scr box? Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586351 Share on other sites More sharing options...
2014pinnacle Posted December 2 Author Share Posted December 2 Trucks a 2016 I’m assuming it’s the original I’ve had the truck for 5 years I’ve never touched it Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586357 Share on other sites More sharing options...
The Heinz Posted December 2 Share Posted December 2 Did you use OEM NOx sensors? Any time we used aftermarket when availability from Volvo was NIL, they would fault after a few drive cycles. Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586382 Share on other sites More sharing options...
2014pinnacle Posted December 3 Author Share Posted December 3 Yes the shop I use the guy only uses Mack parts. Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586429 Share on other sites More sharing options...
2014pinnacle Posted December 3 Author Share Posted December 3 Is their away to actually test the scr box since their dosent appear to be any sensors in it? Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586430 Share on other sites More sharing options...
The Heinz Posted December 3 Share Posted December 3 There's a way, I'm just not sure how. Something probably using Tech Tool. Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586478 Share on other sites More sharing options...
880joe Posted December 3 Share Posted December 3 Me and another guy I know both had to replace ours at the 800000 mile range. I think they test the flow rate through it somehow Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586482 Share on other sites More sharing options...
2014pinnacle Posted December 4 Author Share Posted December 4 Can they be cleaned ? Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586556 Share on other sites More sharing options...
880joe Posted December 4 Share Posted December 4 I was told that there was some sort of precious metals in them and that it burned out over time is what went bad with them Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-586572 Share on other sites More sharing options...
2014pinnacle Posted yesterday at 05:33 PM Author Share Posted yesterday at 05:33 PM So an update started running Riselone Crystal clean in my def system and so far so good I’ve gone a week so far without a manual regen and or engine light and def consumption has gone down Quote Link to comment https://www.bigmacktrucks.com/topic/76190-scr-and-nox-sensor-codes/#findComment-587119 Share on other sites More sharing options...
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