User Manual - Page 219

For 2001 INFINITI I30.

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Possible Cause
NHEC0435
I Harness or connectors
(The sensor circuit is open or shorted.)
I Heated oxygen sensor 1 (front)
I Heated oxygen sensor 1 heater (front)
I Fuel pressure
I Injectors
I Intake air leaks
I Exhaust gas leaks
I PCV valve
I Mass air flow sensor
DTC Confirmation Procedure
NHEC0112
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
TESTING CONDITION:
I Always perform at a temperature above −10°C (14°F).
I Before performing the following procedure, confirm that
battery voltage is more than 11V at idle.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0133 (BANK 1), P0153 (BANK 2) HO2S1 (FRONT) (RESPONSE
MONITORING)
Possible Cause
EC-219
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