[13B] MULTIPORT FUEL INJECTION (MPI) <4G64> - - TROUBLESHOOTING - Data List Reference Table | PRINT PAGE / INDEX / PRIOR / NEXT

Data List Reference Table
Item No. | Inspection item | Inspection condition | Normal condition | Inspection procedure No. | Reference page
--- | --- | --- | --- | --- | ---
12 | Air flow sensor *1 | Engine coolant temperature: 80 - 95°C Lamps, electric cooling fan and all accessories: OFF Transmission: P range | Idle operation | 12 - 38 Hz | - | -
2,500 r/min | 68 - 108 Hz
Acceleration | According to acceleration, frequency is amplified.
13 | Intake air temperature sensor | Ignition switch: “ON” or engine running | Intake air temperature: -20°C | -20°C | Code No. 13 |
Intake air temperature: 0°C | 0°C
Intake air temperature: 20°C | 20°C
Intake air temperature: 40°C | 40°C
Intake air temperature: 80°C | 80° C
14 | Throttle position sensor | Ignition switch: “ON” | Set to Idle position | 535 - 735 mV | Code No. 14 |
Depress the accelerator pedal gradually | Increased according to accelerator pedal stroke
Depress the accelerator pedal fully | 4,500 - 5,000 mV
16 | Power supply voltage | Ignition switch: “ON” | System voltage | Procedure No. 23 |
17 | Mixture adjusting screw (variable resistor) | Ignition switch: ON | 200 - 4,800 mV | Procedure No. 37 |
18 | Cranking signal (ignition switch-ST) | Ignition switch: “ON” | Engine: Stopped | OFF | Procedure No. 23 |
Engine: Cranking | ON
21 | Engine coolant temperature sensor | Ignition switch: “ON” or engine running | Coolant temperature: -20°C | -20°C | Code No. 21 |
Coolant temperature: 0°C | 0°C
Coolant temperature: 20°C | 20°C
Coolant temperature: 40°C | 40°C
Coolant temperature: 80°C | 80°C
22 | Crank angle sensor | Engine: Cranking Tachometer: Connected | Compare engine speed on tachometer with the value displayed on MUT-II/III | Matched | - | -
Engine: Idle operation | Coolant temperature: -20°C | 1,275 - 1,475 r/min
Coolant temperature: 0°C | 1,220 - 1,420 r/min
Coolant temperature: 20°C | 1,103 - 1,303 r/min
Coolant temperature: 40°C | 939 - 1,139 r/min
Coolant temperature: 80°C | 603 - 803 r/min
25 | Barometric pressure sensor | Ignition switch: “ON” | Altitude: 0 m | 101 kPa | Code No. 25 |
Altitude: 600 m | 95 kPa
Altitude: 1,200 m | 88 kPa
Altitude: 1,800 m | 81 kPa
27 | Power steering fluid pressure switch | Engine: Idle operation | Steering wheel: Not operated | OFF | Procedure No. 29 |
Steering wheel: Operated | ON
28 | A/C switch | Engine: Idle | AC switch: OFF | OFF | Procedure No. 26 |
AC switch: ON | A/C compressor is not driven | OFF
A/C compressor is driven | ON
29 | Inhibitor switch | Ignition switch: ON | P or N | P or N | Procedure No. 5 |
D, 3, 2, L or R | D, 3, 2, L or R
37 | Volumetric efficiency | Engine coolant temperature: 80 - 95°C Lamps, electric cooling fan and all accessories: OFF | Idle operation | 20 - 30 % | - | -
2,500 r/min | 17.5 - 27.5 %
Excessive acceleration | According to acceleration, volumetric efficiency is increased.
3A | A/C pressure sensor | After engine warm-up, idle operation A/C switch: ON | A/C in Maximum COOL state (under high load) | 2,200 mV or more | Procedure No. 33 |
A/C in Maximum HOT state (under low load) | 1,800 mV or less
41 | Injectors *2 | Engine: Cranking | Coolant temperature: 0°C (all cylinders in simultaneous injecting operation) | 56.5 - 84.7 ms | - | -
Coolant temperature: 20°C | 23.0 - 34.4 ms
Coolant temperature: 80°C | 8.2 - 12.2 ms
Injectors*3 | Engine coolant temperature: 80 - 95°C Lamps, electric cooling fan and all accessories: OFF Transmission: P range | Idle operation | 2.0 - 3.2 ms
2,500 r/min | 2.0 - 3.2 ms
Excessive acceleration | Increased
44 | Ignition advance | Engine: After warm-up Install timing light (for use to measure actual ignition timing) | Idle operation | 2 - 18° BTDC | - | -
2,500 r/min | 30 - 50° BTDC
45 | Idle speed control (stepper motor) servo position*4 | Engine coolant temperature: 80 - 95°C Lighting, electric cooling fan and accessories: OFF Transmission: P range Engine: Idle operation (When A/C switch is ON, A/C compressor must be ON) | A/C switch: OFF | 2 - 25 steps | - | -
A/C switch: OFF → ON | Increased 10 - 70 steps
A/C switch: OFF Selector lever: N range → D range | Increased 5 - 50 steps
49 | A/C relay | Engine: After warm-up, idle operation after warm-up | A/C switch: OFF | OFF | Procedure No. 27 |
A/C switch: ON | A/C compressor is not driven | OFF
A/C compressor is driven | ON
CAUTION When shifting the select lever to D range, the brakes should be applied so that the vehicle does not move forward NOTE: *1: On the new vehicle (mileage: 500 km or less), air flow sensor output frequency may be higher by approximately 10%. *2: Injector drive time ranges shown are when power voltage is 11 V and the cranking speed is 250 r/min or less. *3: On the new vehicle (mileage: 500 km or less), injector drive time may be longer by approximately 10%. *4: On the new vehicle (mileage: 500 km or less), the number of steps of stepper motor may be larger by approximately 30 steps.

[13B] MULTIPORT FUEL INJECTION (MPI) <4G64> - - TROUBLESHOOTING - Data List Reference Table | PRINT PAGE / INDEX / PRIOR / NEXT

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