[13A] MULTIPORT FUEL INJECTION (MPI) <4G63> - - TROUBLESHOOTING - Data List Reference TablePRINT PAGE / INDEX / PRIOR / NEXT
Data List Reference Table
Item No.
 Inspection item
 Inspection condition
 Normal condition
 Inspection procedure No.
 Reference page
11
 Oxygen sensor (front) <SOHC>
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 200 mV or less ⇔ 600 - 1,000 mV (altered)
 Code No. P0130
Engine: After warm-up (using oxygen sensor, check air-fuel ratio as well as control status by engine-A/T-ECU.
 Idle operation
 400 mV or less ⇔ 600 - 1,000 mV (altered)
2,500 r/min
11
 Oxygen sensor <DOHC>
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 200 mV or less
 Code No. P0130
At excessive acceleration
 600 - 1,000 mV
Engine: After warm-up (using oxygen sensor, check air-fuel ratio as well as control status by engine-A/T-ECU.
 Idle operation
 400 mV or less ⇔ 600 - 1,000 mV (altered)
2,500 r/min
12
 Air flow sensor *1
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: P range
 Idle operation
 27 - 53 Hz <SOHC>
17 - 43 Hz <DOHC>
 -
 -
2,500 r/min
 55 - 95 Hz <SOHC>
40 - 100 Hz <DOHC>
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. P0110
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. P0120
Depress the accelerator pedal gradually
 Increased according to accelerator pedal stroke
Depress theee accelerator pedal fully
 4,500 - 5,000 mV
16
 Power supply voltage
 Ignition switch: “ON”
 System voltage
 Procedure No. 23
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. P0115
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
 Matched
 -
 -
Engine: Idle operation
 Coolant temperature:
-20°C
 1,300 - 1,500 r/min
Coolant temperature: 0°C
 1,150 - 1,350 r/min <SOHC>
1,300 - 1,500 r/min <DOHC>
Coolant temperature: 20°C
 1,100 - 1,300 r/min <SOHC>
1,200 - 1,400 r/min <DOHC>
Coolant temperature: 40°C
 950 - 1,150 r/min <SOHC>
1,100 - 1,300 r/min <DOHC>
Coolant temperature: 80°C
 650 - 850 r/min <SOHC>
600 - 900 r/min <DOHC>
25
 Barometric pressure sensor
<DOHC>
 Ignition switch: “ON”
 Altitude: 0 m
 101 kPa
 Code No.P0105
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
32
 Manifold absolute pressure sensor
<SOHC>
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: P range
  • Ignition switch: “ON”
 Engine
stop
 Altitude: 0 m
 101 kPa
 Procedure No.31
Altitude: 600 m
 95 kPa
Altitude: 1,200 m
 88 kPa
Altitude: 1,800 m
 81 kPa
Idle operation
 21 - 34.4 kPa
Acceleration
 Increases
34
 Air flow sensor reset signal <DOHC>
 Engine: After engine warm-up
 Idle operation
 ON
 Code No. P0100
3,000 r/min
 OFF
37
 Volumetric efficiency <DOHC>
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
 Idle operation
 15 - 35 %
 -
 -
2,500 r/min
 15 - 35 %
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 MAX COOL state (under high load)
 2,200 mV or more
 Procedure No. 33
A/C in MAX 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)
 12 - 24 ms
<SOHC>
23 - 40 ms
<DOHC>
 -
 -
Coolant temperature: 20°C
 35 - 41 ms
<SOHC>
13 - 20 ms
<DOHC>
Coolant temperature: 80°C
 7.7 - 9.7 ms
<SOHC>
3.3 - 4.9 ms
<DOHC>
Injectors *3
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: P range
 Idle operation
2.0 - 3.0 ms
<SOHC>
2.0 - 2.7 ms
<DOHC>
2,500 r/min
 2.0 - 3.0 ms
<SOHC>
1.2 - 2.4 ms
<DOHC>
Excessive acceleration
 Increased
44
 Ignition advance
  • Engine: After warm-up
  • Install timing light (for use to measure actual ignition timing)
 Idle operation
 10 - 30° BTDC <SOHC>
2 - 18° BTDC <DOHC>
-
 -
2,500 r/m
  
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 <DOHC>
  • Selector lever: N range → D range <DOHC>
 Increased 5 - 50 steps <DOHC>
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
59
 Oxygen sensor (rear) <SOHC>
 Engine: After warm-up
 At excessive acceleration
 0 mV or less ⇔ 600 - 1,000 mV (altered)
 Code No.P0136
95
 Manifold differential pressure senso <DOHC>
 Engine: After warm-up, idle operation after warm-up”
 64 - 78 kPa
 Procedure No. 31
12 *5
Air flow sensor
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: P range
 Idle operation
 3.9 - 6.7 gm/s
 -
 -
2,500 r/min
 7.9 - 12.1 gm/s
Acceleration
 According to acceleration, frequency is amplified.
13 *5
Intake air temperature sensor
 Ignition switch: “ON” or engine running
 Intake air temperature:
-20°C
 -20°C
 Code No. P0110
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
21 *5
Engine coolant temperature sensor
 Ignition switch: “ON” or engine running
 Coolant temperature:
-20°C
 -20°C
 Code No. P0115
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 *5
Crank angle sensor
  • Engine: Cranking
  • Tachometer: Connected
 Compare engine speed on tachometer with the value displayed on MUT-II
 Matched
 -
 -
Engine: Idle operation
 Coolant temperature:
-20°C
 1,300 - 1,500 r/min
Coolant temperature: 0°C
 1,150 - 1,350 r/min <SOHC>
1,300 - 1,500 r/min <DOHC>
Coolant temperature: 20°C
 1,100 - 1,300 r/min <SOHC>
1,200 - 1,400 r/min <DOHC>
Coolant temperature: 40°C
 950 - 1,150 r/min <SOHC>
1,100 - 1,300 r/min <DOHC>
Coolant temperature: 80°C
 650 - 850 r/min <SOHC>
600 - 900 r/min <DOHC>
24 *5
Vehicle speed sensor
 Drive 40 km/h
 Approximately 40 km/h
 Code No. P0500
44 *5
Ignition advance
  • Engine: After warm-up
  • Install timing light (for use to measure actual ignition timing)
 Idle operation
 10 - 30 deg <SOHC>
0 - 13 deg <DOHC>
 -
 -
2,500 r/m
 30 - 50 deg <SOHC>
20 - 40 deg <DOHC>
81 *5
Long-term fuel compensation
 Engine: After warm-up 2,500 r/min without any load (during closed loop)
 -12.5 - 12.5 %
 Code No. P0170
82 *5
Shot-term fuel compensation
 Engine: After warm-up 2, 500 r/min without any load (during closed loop)
 -25 - 25 % <SOHC>
-20 - 20 % <DOHC>
 Code No. P0170
87 *5
Calculation load value
 Engine: After warm-up
 Idle operation
 15 - 35 %
 -
 -
2 500 r/min
 10 - 35 % <SOHC>
15 - 35 % <DOHC>
88 *5
Fuel control condition
 Engine: After warm-up
 2 500 r/min
 Closed loop
 -
 -
Acceleration
 Open loop -drive condition
8A *5
Throttle position sensor (Throttle opening angle)
 Ignition switch: “ON”
 Set to Idle position
 0 - 1 %
 Code No. P0120
Release accelerator pedal gradually
 Increased according to accelerator pedal stroke
Release accelerator pedal fully
 80 - 100 %
A1 *5
Oxygen sensor (front) <SOHC>
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 0.2 V or less ⇔ 0.6 - 1V (altered)
Code No. P0130
Engine: After warm-up (using oxygen sensor, check air-fuel ratio as well as control status by engine-A/T-ECU.
 Idle operation
 0.4 V or less ⇔ 0.6 - 1V (altered)
2,500 r/min
A1 *5
Oxygen sensor <DOHC>
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 0.2 V or less
 Code No. P0130
At excessive acceleration
 0.6 - 1 V
Engine: After warm-up (using oxygen sensor, check air-fuel ratio as well as control status by engine-A/T-ECU.
 Idle operation
 0.2 V or less
2,500 r/min
 0.6 - 1 V
A2 *5
Oxygen sensor (rear) <SOHC>
 Engine: After warm-up
 At excessive acceleration
 0 V or less ⇔ 0.6 - 1 V (altered)
 Code No.P0136

 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.
  • *5: When service data in check mode is selected, the data is not displayed.
[13A] MULTIPORT FUEL INJECTION (MPI) <4G63> - - TROUBLESHOOTING - Data List Reference TablePRINT PAGE / INDEX / PRIOR / NEXT
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