Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
symptoms
Other than the MIL light illuminating you may not notice any performance issues.
cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM
The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 1 sensor 1 O2 sensor
How fix code P1140
To find the ignition key code for a 1994 Nissan Sentra SE, check the owner's manual. You can also contact the manufacturer to obtain the code.
2002 NISSAN/DATSUN SENTRA 1.8L 4-cyl Engine Code QG18DECAPACITIESEngine, with Wix # 51365 Filter..........2.9 quarts2002 NISSAN/DATSUN SENTRA 2.5L 4-cyl Engine Code QR25DECAPACITIESEngine, with Wix # 51356 Filter..........4.5 quartsHope This Helps.
yes, both motors are exactly alike. 1.6L DOHC engine code: GA16DE
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