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Fuel Control: Notes
ECU controls fuel system based upon sensor input signals. See FUEL CONTROL SYSTEM INPUT SIGNALS table. If feedback system does not function properly, check input signals before replacing ECU.
FUEL CONTROL SYSTEM INPUT SIGNALS
| Application |
Model Usage |
| A/C Clutch Signal |
G20 &
Q45 |
| Airflow Meter |
G20, M30 & Q45 |
| Battery Voltage |
G20, M30 & Q45 |
| Crank Angle Sensor |
G20, M30 & Q45 |
| Engine (Coolant) Temperature |
G20 M30 & Q45 |
| Exhaust Gas Temperature Sensor |
G20, M30 & Q45 |
| Fuel Temperature Sensor |
M30 & Q45 |
| Ignition (START) Switch |
G20 M30 & Q45 |
| Neutral Switch |
G20 |
| Oxygen Sensor |
G20, M30 &
Q45 |
| Park/Neutral (Inhibitor) Switch |
G20,
M30 &
Q45 |
| Power Steering Pressure Switch |
G20 & Q45 |
| Secondary Throttle Sensor |
Q45 |
| Sub-Crank Angle Sensor |
Q45 |
| Throttle Position Sensor |
G20, M30 & Q45 |
| Throttle (Idle) Switch |
M30 & Q45 |
| Vehicle Speed Sensor |
G20, M30 & Q45 |