[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - 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*6
Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 200 mV or less
 Code No. P0130 <Vehicles for Hong kong>
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: 85 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: "P" range
 Idle operation
 2.0 - 4.0 g/s <Vehicles for Hong kong>
1.5 - 3.5 g/s <Vehicles except for Hong kong>
 -
 -
2,500 r/min
 6.5 - 12.0 g/s <Vehicles for Hong kong>
5.5 - 11.5 g/s <Vehicles except for Hong kong>
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 (sub) *4
  • Remove the intake air hose at the throttle body
  • Disconnect the throttle position sensor, and the connect terminal numbers No. 3, No. 4, No. 5 and No. 6 with the use of the special tool: MB991658.
  • Ignition switch: ON
 Fully close the throttle valve with your finger
 2,200 - 2,800 mV
 Code No. P0222, P0223

Fully open the throttle valve with your finger
 4,600 mV or more
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/III
 Matched
 Code No. P0335
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
 1,100 - 1,300 r/min
Coolant temperature: 40°C
 1,140 - 1,340 r/min <Vehicles for Hong kong>
940 - 1,140 r/min <Vehicles except for Hong kong>
Coolant temperature: 80°C
 600 - 800 r/min <Vehicles for Hong kong>
590 - 790 r/min <Vehicles except for Hong kong>
25
 Barometric pressure sensor
 Ignition switch: "ON"
 Altitude: 0m
 101 kPa
 -
 -
Altitude: 600m
 95 kPa
Altitude: 1,200m
 88 kPa
Altitude: 1,800m
 81 kPa
26
 Accelerator pedal position switch
 Ignition switch: "ON"
 Release the accelerator pedal
 ON <Vehicles for Hong kong>
 Procedure No. 31
Depress the accelerator pedal
 OFF <Vehicles except for Hong kong>
27
 Power steering fluid pressure switch
 Engine: Idle operation
 Steering wheel: Not operated
 OFF
 Code No. P0551<Vehicles for Hong kong>
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
37
 Volumetric efficiency
  • Engine coolant temperature: 85 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: "P" range
 Idle operation
 15 - 35% <Vehicles for Hong kong>
5 - 25% <Vehicles except for Hong kong>
 -
 -
2,500 r/min
 15 - 35% <Vehicles for Hong kong>
5 - 25% <Vehicles except for Hong kong>
Excessive acceleration
 According to acceleration, volumetric efficiency is increased.
39
 Cylinder 2,3 oxygen sensor (front) <Vehicles for Hong kong>
 Engine: After warm-up (leaner by deceleration, richer acceleration)
 Excessive deceleration from 4,000 r/m
 200 mV or less
 Code No. P0150 <Vehicles for Hong kong>
At excessive acceleration
 600 - 1,000 ms
Engine: After warm-up (using oxygen sensor, check air-fuel ratio as well as control status by engine-ECU
Idle operation
 400 mV or less ⇔ 600 - 1,000 mV (altered)
2,500 r/min
41
 Injectors*2
  • Engine coolant temperature: 80 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: "P" range
Idle operation
2.0 - 3.2 ms <Vehicles for Hong kong>
1.6 - 2.8 ms <Vehicles except for Hong kong>
 -
 -
2,500 r/min
 1.7 - 2.9 ms <Vehicles for Hong kong>
1.6 - 2.8 ms <Vehicles except for Hong kong>
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
 Procedure No. 30
2,500 r/min
 26 - 46°BTDC <Vehicles for Hong kong>
25 - 45°BTDC <Vehicles except for Hong kong>
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*7 (rear)
 Engine: After warm-up
 At excessive acceleration
 0 mV or less ⇔ 600 - 1,000 mV (altered) <Vehicle except for South africa, Australia>
 Code No. P0136 <Vehicles for Hong kong>
68
 EGR valve
  • Engine coolant temperature: 85 - 95°C
  • Lights and all accessories: "OFF"
  • Transmission: "P" range
Idling
 2 - 8 STEP
 Code No. P0403 <Vehicles for Hong kong>
2,500 r/min
 3 - 22 STEP <Vehicles for Hong kong>
2 - 8 STEP <Vehicles except for Hong kong>
69
 Cylinder 2,3 oxygen sensor (rear) <Vehicles for Hong kong>
 Engine: After warm-up
 At excessive acceleration
 0 mV or less ⇔ 600 - 1,000 mV (altered)
 Code No. P0156
77
 Accelerator pedal position sensor (sub)
 Ignition switch: ON
 Release the accelerator pedal
 400 - 1,000 mV <Vehicles for Australia, South africa and Hong kong>
350 - 950 mV <Vehicles except for Australia, South africa and Hong kong>
 Code No. P2126, P2127, P2128


Depress the accelerator pedal gradually
 Increases in response to the pedal depression stroke
Depress the accelerator pedal fully
 3,600 mV or more <Vehicles for Australia, South africa and Hong kong>
4,000 mV or more <Vehicles except for Australia, South africa and Hong kong>
78
 Accelerator pedal position sensor (main)
 Ignition switch: ON
 Release the accelerator pedal
 800 - 1,000 mV <Vehicles for Australia, South africa and Hong kong>
350 - 950 mV <Vehicles except for Australia, South africa and Hong kong>
 Code No. P2121, P2122, P2123


Depress the accelerator pedal gradually
 Increases in response to the pedal depression stroke
Depress the accelerator pedal fully
 4,000 mV or more
79
 Throttle position sensor (main)
  • Remove the intake air hose at the throttle body
  • Disconnect the throttle position sensor, and then connect terminal numbers No. 3, No. 4, No. 5 and No. 6 with the use of the special tool: MB991658.
  • Ignition switch: ON
 Fully close the throttle valve with your finger
 300 - 700 mV
 Code No. P0122, P0123

Fully open the throttle valve with your finger
 4,000 mV or more
No load
 500 - 700 mV
  • Shift lever: "N" → "D"
The voltage rises
95
 Manifold absolute pressure sensor
 Ignition switch: ON
 Altitude: 0 m
 101 kPa
 Code No. P0105 <Vehicles for Hong kong>

Altitude: 600 m
 95 kPa
Altitude: 1,200 m
 88 kPa
Altitude: 1,800 m
 81 kPa
  • Engine coolant temperature: 85 - 95°C
  • Lights and all accessories: "OFF"
  • Transmission: "P" range
Idle operation
 16 - 36 kPa
When engine is suddenly raced
 Increased
9A
 Throttle position sensor (main) mid opening learning value
 Ignition switch: ON
 600 - 1,200 mV
 Code No. P0122, P0123

12 *5
Air flow sensor
  • Engine coolant temperature: 85 - 95°C
  • Lamps, electric cooling fan and all accessories: OFF
  • Transmission: "P" range
 Idle operation
 2.0 - 4.0 gm/s
 -
 -
2,500 r/min
 8.0 - 12.0 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/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
 1,100 - 1,300 r/min
Coolant temperature: 40°C
 930 - 1,130 r/min
Coolant temperature: 80°C
 600 - 800 r/min
24 *5
Vehicle speed sensor
 Drive 40 km/h
 Approximately 40 km/h
 -
 -
44 *5
Ignition advance
  • Engine: After warm-up
  • Install timing light (for use to measure actual ignition timing)
 Idle operation
 2 - 18 deg
 -
 -
2,500 r/min
 26 - 46 deg
81 *5
Long-term fuel compensation cylinder 1, 4
 Engine: After warm-up, 2,500 r/min without any load (during closed loop)
 -12.5 to 12.5%
 Code No. P0170
82 *5
Shot-term fuel compensation cylinder 1, 4
 Engine: After warm-up, 2,500 r/min without any load (during closed loop)
 -25 to 25%
 Code No. P0170
83 *5
Long-term fuel compensation cylinder 2, 3
 Engine: After warm-up, 2,500 r/min without any load (during closed loop)
 -12.5 to 12.5%
 Code No. P0173
84 *5
Short-term fuel compensation cylinder 2, 3
 Engine: After warm-up, 2,500 r/min without any load (during closed loop)
 -25 to 25%
 Code No. P0173
87 *5
Calculation losd value
 Engine: After warm-up
 Idle operation
 13 - 33%
 -
 -
2,500 r/min
 10 - 30%
88 *5
Fuel control condition cylinder 1, 4
 Engine: After warm-up
 2,500 r/min
 Closed loop
 -
 -
Acceleration
 Open loop-drive condition
89 *5
Fuel control condition cylinder 2, 3
 Engine: After warm-up
 2,500 r/min
 Closed loop
 -
 -
Acceleration
 Open loop-drive condition
8A *5
Throttle position sensor (main) *4
  • Remove the intake air hose at the throttle body
  • Disconnect the throttle position sensor, and then connect terminal numbers No. 3, and No. 4, No. 5 and No. 6 with the use of the special tool: MB991658.
  • Ignition switch: ON
 Fully close the throttle valve with your finger
 0 - 5%
 Code No. P0122, P0123

Fully open the throttle valve with your finger
 88% or more
A1 *5
Cylinder 1, 4 oxygen sensor (front)
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 0.2 V or less ⇔ 0.6 - 1 V (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 - 1 V (altered)
2,500 r/min
A2 *5
Cylinder 1, 4 oxygen sensor (rear)
 Engine: After warm-up
 At excessive acceleration
 0 V or less ⇔ 0.6 - 1 V (altered)
 Code No. P0136
A3 *5
Cylinder 2,3 oxygen sensor (front) <Vehicles for Hong kong>
 Engine: After warm-up (leaner by deceleration, richer by acceleration)
 Excessive deceleration from 4,000 r/min
 0.2 V or less ⇔ 0.6 - 1 V (altered)
 Code No. P0150
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
A4 *5
Cylinder 2,3 oxygen sensor (rear) <Vehicles for Hong kong>
 Engine: After warm-up
 At excessive acceleration
 0 V or less ⇔ 0.6 - 1 V (altered)
 Code No. P0156

 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 approx. 10%.
NOTE: *2: Injector drive time ranges shown are when power voltage is 11 V and the cranking speed is 250 r/min. or less.
NOTE: *3: On the new vehicle (mileage: 500 km or less), injector drive time may be longer by approx. 10%.
NOTE: *4: After the inspection has been completed, disconnect the throttle actuator control motor connector, and then use the MUT-II/III to delete the diagnosis code that was recorded during the inspection.
NOTE: *5: When service data in check mode is selected, the data is not displayed. <Vehicles for Hong kong>
NOTE: *6: Oxygen sensor <Vehicles except for Brazil, Chile and Hong kong>
Oxygen sensor (front) <Vehicles for Brazil and Chile>
Cylinder 1, 4 (front) <Vehicles for Hong kong>
NOTE: *7: Oxygen sensor (rear) <Vehicles for Brazil and Chile>
Cylinder 1, 4 (front) <Vehicles for Hong kong>
[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - Data List Reference TablePRINT PAGE / INDEX / PRIOR / NEXT
©2004 Mitsubishi Motors Corporation