Service Data
Service Data (1 Of 3)
| Inspection item | Inspection contents | Normal condition | |
|---|---|---|---|
| Heated oxygen sensor (front) | Engine: Warm (Air/fuel mixture is made leaner when decelerating, and is made richer when racing.) |
When at 4,000 r/min, engine is suddenly decelerated | 200 mV or less |
| When engine is suddenly raced | 600-1,000 mV | ||
| Engine: Warm (The heated oxygen sensor signal is used to check the air/fuel mixture ratio, and control condition is also checked by the ECM.) |
Engine is idling | 400 mV or less, or 600-1,000 mV (Changes) | |
| 2,500 r/min | |||
| Mass air flow sensor | Engine coolant temperature: 80-90°C (176-203°F) Lights, electric cooling fan and all accessories: OFF Transaxle: Neutral (A/T: P range) |
Engine is idling | 1.4-1.6V |
| 3,000 r/min | 1.7-2.0V | ||
| Engine is idling | Voltage increases in response to racing | ||
| Intake air temperature sensor | Ignition switch: ON or with engine running | When intake air temperature is 0°C (32°F) | 0°C (32°F) 3.2-3.8V |
| When intake air temperature is 20°C (68°F) | 20°C (68° F) 2.3-2.9V | ||
| When intake air temperature is 40°C (104°F) | 40°C (104°F) 1.5-2.1V | ||
| When intake air temperature is 80°C (176°F) | 80°C (176°F) 0.5-0.9V | ||
| Throttle position sensor | Ignition switch: ON | Set to idle position | 300-900 mV (6-20%) |
| Gradually open | Increases in proportion to throttle opening angle | ||
| Open fully | 4.0-4.6V (80-100%) | ||
| Power supply voltage | Ignition switch: ON | Battery positive voltage | |
| Cranking signal (Ignition switch-ST) | Ignition switch: ON | Engine: Stopped | OFF |
| Engine: Cranking | ON | ||
| Engine coolant temperature sensor | Ignition switch: ON or with engine running | When engine coolant temperature is 0°C (32°F) | 0°C (32°F) 3.2-3.8V |
| When engine coolant temperature is 20°C (68°F) | 20°C (68° F) 2.3-2.8V | ||
| When engine coolant temperature is 40°C (104°F) | 40°C (104°F) 1.5-2.1V | ||
| When engine coolant temperature is 80°C (176°F) | 80°C (176°F) 0.4-0.8V | ||
Service Data (2 Of 3)
| Inspection item | Inspection contents | Normal condition | |
|---|---|---|---|
| Crankshaft position sensor | Engine: Cranking Tachometer: Connected |
Compare the rpm of the tachometer with the one of the scan tool. | Identical |
| Idle speed test | Engine: Idling Idle position switch: ON |
When engine coolant temperature is -20°C (-4°F) | 1300--1500 r/min |
| When engine coolant temperature is 0°C (32°F) | 1300--1500 r/min | ||
| When engine coolant temperature is 20°C (68°F) | 1150--1350 r/min | ||
| When engine coolant temperature is 40°C (104°F) | 950--1150 r/min | ||
| When engine coolant temperature is 80°C (176°F) | 650--850 r/min | ||
| Vehicle speed sensor | Drive at 40 km/h (25 miles/h) | Approx. 40 km/h (25 mph) | |
| Idle position switch | Ignition switch: ON Check by operating accelerator pedal repeatedly |
Throttle valve: Set to idle position | ON |
| Throttle valve: Slightly open | OFF | ||
| Power steering pressure switch | Engine: Idling | Steering wheel stationary | OFF |
| Steering wheel turning | ON | ||
| A/C switch | Engine: Idling (When A/C switch is ON, A/C compressor should be operating.) | A/C switch :OFF | OFF |
| A/C switch: ON | ON | ||
| Park/Neutral position switch (A/T) | Ignition switch: ON | P or N | P or N |
| D, 2, L or R | D, 2, L or R | ||
| Injectors | Engine: Cranking | When engine coolant temperature is 0°C (32°F) (Injection is carried out for all cylinders simultaneously) | 13.8--20.6 ms |
| When engine coolant temperature is 20°C (68°F) | 34-51 ms | ||
| When engine coolant temperature is 80°C (176°F) | 8.8--13.2 ms | ||
| Injectors | Engine coolant temperature: 80-95°C (176- 203°F) Lights, electric cooling fan and all accessories: OFF Transaxle: Neutral (A/T: P range) |
Engine is idling | 2.6-3.8 ms |
| 2,500 r/min | 2.3-3.5 ms | ||
| When engine is suddenly raced | Increases | ||
Service Data (3 Of 3)
| Inspection item | Inspection contents | Normal condition | |
|---|---|---|---|
| Ignition coils and ignition power transistors | Engine: After having warmed up Timing light is set. (The timing light is set in order to check actual ignition timing.) |
Engine is idling | 7-23° BTDC |
| 2,500 r/min | 27-47° BTDC | ||
| A/C compressor clutch relay | Engine: After having warmed up/Engine is idling | A/C switch: OFF | OFF (Compressor clutch is not operating) |
| A/C switch: ON | ON (Compressor clutch is operating) | ||
| ISC step motor | Engine coolant temperature: 80-95°C (176-203°F) Lights, electric cooling fan and all accessories: OFF Transaxle: Neutral (A/T: P range) Closed throttle position switch: ON Engine: Idling (When A/C switch is ON, A/C compressor should be operating.) |
A/C switch: OFF | Increases by 2--20 steps |
| A/C switch: OFF - ON | Increases by 8--50 steps | ||
| A/C switch: OFF Select lever: N range - D range |
Increases by 3-40 steps | ||
| Heated oxygen sensor (rear) | Transaxle: 2nd gear (M/T) L range (A/T) Drive with wide open throttle |
3,500 r/min | 600-1,000 mV |
| Long-term fuel compensation | Engine: Warm, idle without any load (during closed loop) | -12.5~12.5% | |