Powertrain, generic (extended)

P2214 NOx Sensor Circuit Range/Performance (Bank 2)

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Under J2012, P2214 is the plausibility fault of the bank 2 NOx sensor: wiring intact, reading not credible. No maker uses it that way in public documents. Hino does use the number differently: on its J08E inline six (Hino 238, 258, 268 and 338 conventional models, 2011 to 2016) P2214 belongs to NOx sensor 2 behind the SCR catalyst. Hino bulletin SB-14-029 first checks DEF concentration (31.8 to 33.2 percent), exhaust leaks, temperature and airflow sensors and the dosing injector, then re-tests at a steady 45 to 50 mph after a regeneration. SB-15-038 and SB-16-002 link P2214 and P2201 to NOx heater elements cracked by condensation and add DCU software. For a real bank 2 sensor, P2201 logic applies (VW: 60 percent deviation).

Likely causes

Aged or poisoned NOx element reading with offset or slow response
Sensor heater cracked by condensation (Hino 2015-2016, SB-15-038/SB-16-002)
Diluted DEF or faulty dosing injector distorting the NOx reading
Exhaust leak upstream of the sensor

Symptoms

  • Malfunction indicator lamp on
  • Often stored with P2201 or SCR efficiency code P20EE
  • Higher DEF consumption or SCR warning

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–1,100
Time0.8–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

nox sensor

Related codes

P2201P2213P2215P2216P221BP20EE

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.