2 active fault on 2012 cascadia dd15
Eec 061 spn004364
Nox Conv. Eff. 18
Eec. 061. Spn003364
Dpf quality. 02
Yellow engine light on . Not the check engine
Please explain and give solution for fault
Any help be good
Thanks
Active fault on cascadia
Discussion in 'Trucks [ Eighteen Wheelers ]' started by TruckerGST, Sep 3, 2015.
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TruckerGST Thanks this.
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SPN 4364 - Low NOx Conversion Efficiency
FMI 18 - Data Valid, but Below Normal Operating Conditions - Moderately Severe Level.
This means that the reduction of NOx (inlet NOx to outlet NOx) is too low.
SPN 3364 - DEF Quality Low
FMI 02 - Data Valid, but Below Normal Operating Conditions - Moderately Severe Level.
The is show that the DEF quality is poor. It could be a sensor issue, but since it's also seeing poor NOx conversion, you may have contaminated DEF. First I would check & replace the DEF filter and I'd pull the DEF doser and make sure it's clean. If you find any signs of contamination, draint he DEF tank and refill with new.
It could be many things, but start there.TruckerGST Thanks this. -
that outlet nox sensor has short life because of location.
TruckerGST Thanks this. -
Drainning and refueling DEF and cleaning doser unit . Did the trick . Cut off main power. Restart run 30 mins . Did the trick . No more codes. Thanks mhyn and grapeape
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Thanks
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I have 2012 DD15 with same issues,everything has been checked pump replaced NOx outlet changed system cleaned DEF flushed,all the voltages correct,dosing quantity correct presses etc everything. Still low to no efficiency in Conversion.
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Simply do not know wha to do anymore.
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Could this be DPF doser issue ,but it's been cleaned and all of the parameters correct
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