- Open circuit of crank shaft position sensor
wire harness
- Crank shaft position sensor terminals are
reversely connected.
- Incorrect clearance between sensor and 58x
target gear
- Sensor absorbs foreign matters
- Sensor magnetism fades or is spoiled
2) There is turning speed data flow
- Incorrect relative position between the 58x
gear and the upper limit
- Repair wire harness
- Repair wire harness
- Adjust the clearance: 0.3-1.5mm
- Clean the sensor
- Replace the sensor
2) There is turning speed data flow
- Check: Lower rim of Tooth No. 20 is
the upper limit of Cylinder 1-4.
Fuel supply system:
1) Reversed connection of inlet/return fuel
pipe
2) Open circuit of fuel pump wiring
3) Extra fuel in the engine
4) Inlet pipe pressure > 250kPa
- Blocked spray nozzle
5) Inlet pipe pressure < 250kPa
- Insufficient fuel in the fuel tank
- Clogged fuel filter
- Inlet pipe leakage
- Damaged fuel pressure regulator
- Insufficient fuel pump pressure
- Improper fuel evaporative duty
1) Connect properly
2) Repair vehicle wire harness and fix the
fuel pump fittings again
3) Small amount of extra fuel in the
engine: wide open the throttle and start
the starter;
Big amount of extra fuel in the engine:
unfix the spark plug and start the starter
until the extra fuel is fully dried.
4)
- Replace spray nozzle
5)
- Gas up
- Replace the fuel filter
- Replace the inlet pipe
- Replace the fuel pressure regulator
- Replace the fuel pump
- Use fuel of appropriate evaporative
duty based on the season
Ignition system
1) Ignition coil fittings
2) Incorrect cylinder sequence
3) Damaged spark plug
4) Damaged ignition coil
1) Fix the terminals again
2) Connect the coil and spark plug as
instructed
3) Replace the spark plug
4) Replace the ignition coil
Continued
Idle speed control system:
1) Lightly step on the accelerator pedal but
1) Look for other causes