Engine management system - V8 (Fuel injectors): Description and operation
- Make
- Land Rover
- Model
- Discovery II (UK)
- Section
- Description and operation › Fuel injectors
Engine management system - V8Fuel injectors · page 1 of 3
| P Code | J2012 Description | Land Rover Description |
|---|---|---|
| P0158 | O2 sensor circuit high voltage (bank 2, sensor 2) | Rear sensor RH bank short circuit to battery voltage (NAS only) |
| P0160 | O2 sensor circuit no activity detected (bank 2, sensor 2) | Rear sensor RH bank open circuit (NAS only) |
| P0133 | O2 sensor circuit slow response (bank 1, sensor 1) | Front sensor aged - period time too long/too short LH bank |
| P0153 | O2 sensor circuit slow response (bank 2, sensor 1) | Front sensor aged - period time too long/too short RH bank |
| P1170 | Downstream fuel trim malfunction (bank 1) | Front sensor aged - rear HO2S adaption too lean/too rich LH bank (NAS and EU-3 only) |
| P1173 | Downstream fuel trim malfunction (bank 2) | Front sensor aged - rear HO2S adaption too lean/too rich RH bank (NAS and EU-3 only) |
| P0135 | O2 sensor heater circuit malfunction (bank 1, sensor 1) | Front sensor heater LH bank - short/open circuit |
| P0141 | O2 sensor heater circuit malfunction (bank 1, sensor 2) | Rear sensor heater LH bank - short/open circuit (NAS and EU-3 only) |
| P0155 | O2 sensor heater circuit malfunction (bank 2, sensor 1) | Front sensor heater RH bank - short/open circuit |
| P0161 | O2 sensor heater circuit malfunction (bank 2, sensor 2) | Rear sensor heater RH bank - short/open circuit (NAS and EU-3 only) |
| P0420 | - | Catalyst efficiency deteriorated - LH bank (NAS and EU-3 only) |
| P0430 | - | Catalyst efficiency deteriorated - RH bank (NAS and EU-3 only) |
Fuel injectors
The fuel injectors are located beneath the air inlet manifold. They utilise an electrical solenoid to lift the injector needle off its seat to allow fuel injection to take place. The fuel injectors provide excellent fuel atomisation in the lower portion of the inlet manifold, the air/fuel mixture can then be drawn into the cylinders to give good combustion characteristics and therefore excellent driveability.
Parts & tools for this job For Land Rover Discovery
- PARTFuel filterSearch: Land Rover Discovery fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
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