SK350LC-10 YC14S00497 5722 hours Recent service including DEF filter and DEF purity test. Coming from the Cat world, these Hinos are foreign to me. P204F SCR system failed P2212 Nox heater sensor? P20EE Catalyst Nox efficiency low I have zero clue where to start. I have Texa, but, I'm just learning it.
Please see the attached files for troubleshooting.
Please see the attached file. Good luck.
In case you need further reference. Hino J08E-VV TIER 4 Shop Manual
goodday @ heymccall you ever get a solution to your problem? i'm facing a similar issue
It finally puked a P2215 code. Changed the Nox sensor in the tail pipe (outlet), and it allowed me to clear. It ran all day yesterday with no faults.
nice. currently facing an issue with our SK350LC10 snYC14-14303 it throwing NOX system failure. with a P104 for the air flow sensor. swaped it with a known good sensor from a sister machine ive checked the voltage coming from ECM its 12.7 volts. grounds are good. and signal line is giving me 4V and 4.5 for the temperature and air flow. . going to check the continuity tomorrow. anyone have somethin else i can check? and can i freely swap engine ECM's without much issue?
so here's an update, measured the signal voltage coming from the ECM its 4.73v. checked all the wires comming from the ECM all measured good .01 ohm tested with a continuity tester. that also lit up. what i found is that when the wires were disconected there was still some stray voltage of .5v in the lines like a capacitor was discharging. could this cause the problem of a P0104 code. because the Airflow/temp sensor is not giving a reading causing the egr valve to shut giving me a derate condition. ive checked all plugs on the engine side. no sign of corosion. does anyone have a sugestion or have met this problem before?