[13A] MULTIPOINT FUEL INJECTION (MPI) <4G63> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

DIAGNOSIS SYSTEM Engine -A/T-ECU has been provided with the following functions for easier system inspection.
DIAGNOSIS CODE The diagnosis and engine warning lamp items are given in the table below.
Code No. | Diagnosis item | Main diagnosis contents | Engine warning lamp
--- | --- | --- | ---
P0100 | Air flow sensor system | Open circuit or short-circuit in sensor-related circuits | ON
P0105 | Barometric pressure sensor system <DOHC> | Open circuit or short-circuit in sensor-related circuits | ON
P0110 | Intake air temperature sensor system | Open circuit or short-circuit in sensor-related circuits | ON
P0115 | Engine coolant temperature sensor system | Open circuit or short-circuit in sensor-related circuits | ON
P0120 | Throttle position sensor system | Open circuit or short-circuit in sensor-related circuits | ON
P0130 | Oxygen sensor (front) system | Open circuit or short-circuit in sensor-related circuits | ON
P0135 | Oxygen sensor heater (front) system | Open circuit or short-circuit in heater-related circuits | ON
P0136 | Oxygen sensor (rear) system <SOHC> | Open circuit or short-circuit in sensor-related circuits | ON
P0141 | Oxygen sensor heater (rear) system <SOHC> | Open circuit or short-circuit in heater-related circuits | ON
P0170 | Abnormal fuel system | Leanness or richness problem | ON
P0201 | No. 1 injector system | Open circuit or short-circuit in injector-related circuits | ON
P0202 | No. 2 injector system | Open circuit or short-circuit in injector-related circuits | ON
P0203 | No. 3 injector system | Open circuit or short-circuit in injector-related circuits | ON
P0204 | No. 4 injector system | Open circuit or short-circuit in injector-related circuits | ON
P0300 | Ignition coil (power transistor) system | Abnormal ignition signal (Mis-firing) | ON
P0325 | Detonation sensor system | Abnormal sensor output | ON
P0335 | Crank angle sensor system | Abnormal sensor output | ON
P0340 | Camshaft position sensor system | Abnormal sensor output | ON
P0400 | Exhaust gas recirculation (EGR) system | EGR valve not operating | ON
P0403 | Exhaust gas recirculation (EGR) control solenoid valve system | Open circuit or short-circuit in solenoid valve-related circuits | ON
P0500 | Vehicle speed signal system | Abnormal sensor output | -
P0622 | Alternator FR terminal system | Open circuit or short-circuit in sensor-related circuits | -
P1603 | Battery back-up line system | Open circuit or short-circuit in system-related circuits | -
- | Engine-ECU | Abnormality in engine-ECU | ON
DATA LIST FUNCTION The data list items are given in the table below
Item No. | Inspection item | Unit
--- | --- | ---
11 | Oxygen sensor (front) | mV
12 | Air flow sensor | Hz
13 | Intake air temperature sensor | °C
14 | Throttle position sensor | mV
16 | Power supply voltage | V
18 | Cranking signal (ignition switch-ST) | ON/OFF
21 | Engine coolant temperature sensor | °C
22 | Crank angle sensor | r/min
25 | Barometric pressure sensor <DOHC> | kPa
27 | Power steering fluid pressure switch | ON/OFF
28 | A/C switch | ON/OFF
32 | Manifold absolute pressure sensor <SOHC> | kPa
34 | Air flow sensor reset signal <DOHC> | ON/OFF
37 | Volumetric efficiency <DOHC> | %
3A | A/C pressure sensor | mV
41 | Injectors | ms
44 | Ignition advance | ° BTDC
45 | Idle speed control (stepper motor) position | STEP
49 | A/C relay | ON/OFF
59 | Oxygen sensor (rear) <SOHC> | mV
12* | Air flow sensor | gm/s
13* | Intake air temperature sensor | °C
21* | Engine coolant temperature sensor | °C
22* | Crank angle sensor | r/min
24* | Vehicle speed signal | km/h
44* | Ignition advance | deg
81* | Long-term fuel compensation | %
82* | Short-term fuel compensation | %
87* | Calculated load valve | %
88* | Fuel control condition | Closed loop/Open loop - drive condition
8A* | Throttle position sensor (Throttle valve opening rate) | %
A1* | Oxygen sensor (front) | V
A2* | Oxygen sensor (rear) <SOHC> | V
NOTE: Items marked "*" will not appear if a data list is selected in the check mode.
ACTUATOR TEST FUNCTION The actuator test items are given in the table below
Item No. | Inspection item | Drive contents
--- | --- | ---
01 | Injectors | Cut fuel to No.1 injector
02 | Cut fuel to No.2 injector
03 | Cut fuel to No.3 injector
04 | Cut fuel to No.4 injector
07 | Fuel pump | Fuel pump operates and fuel is recirculated
08 | Purge control solenoid valve | Solenoid valve turns from OFF to ON
09 | Fuel pressure control solenoid valve <DOHC> | Solenoid valve turns from OFF to ON
10 | Exhaust gas recirculation (EGR) control solenoid valve | Solenoid valve turns from OFF to ON
12 | West gate solenoid valve <DOHC> | Solenoid valve turns from OFF to ON
17 | Basic ignition timing | Set to ignition adjustment mode
21 | Fan controller | Drive the fan motor

[13A] MULTIPOINT FUEL INJECTION (MPI) <4G63> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

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