Sectional View Of A Heated Lambda Sensor - PGO Tigra AF-125BAE Service Manual

Fault diagnosis
A variety of signals from different sensors, actuators, power amplifiers and detection circuits are monitored by
ECU. In the event of each of the following situations detected by ECU, the corresponding PCODE for a
Lambda sensor might be indicated on the dashboard. (Refer to "Conditions of error information & records".)
1. Error of a Lambda sensor's signals
2. Error of a battery's voltages
3. Error of signals of an intake manifold's absolute pressures
4. Error of signals of an engine's water coolant temperatures
5. Error of a nozzle's functions
For any PCODE with respect to a Lambda sensor indicated on the dashboard, the close loop control system is
terminated but the open loop control system is activated as per the fundamental injection MAP saved in ECU to
dispense fuel.
◙ Acceptable fuel additives: unleaded gasoline; gasoline with the lead content of 0.15g/L.
Constitution:
Lead in Gasoline (g/L)
0.6
0.4
0.15
0.005 (Unleaded gasoline)
Fig. 11-4.3, Sectional view of a heated Lambda sensor
Fuel Injection System 7
Service Life (km)
30000
50000
80000
160000
73
1. Signal line
2. Dish washer
3. Lower isolating bush
4. Sheath
5. Wirework
6. Heater
7. Washer
8. Sensor support
9. Ceramic probe
10. Protection tube