Engine Control Module: Locations

Component Locations:

AIR FLOW METER
Attached to air cleaner assembly.

ATMOSPHERIC PRESSURE SENSOR
Integral component of ECU.

BYPASS AIR CONTROL (BAC) VALVE
Mounted on bottom of throttle body.

FUEL PUMP RELAY (CIRCUIT OPENING RELAY)
Next to ECU, behind right side trim cover of center console, under dash.

DIAGNOSIS CONNECTOR
Driver side engine compartment, next to left strut tower.

ENGINE CONTROL UNIT (ECU)
Under center of dash, inside center console.

EGR POSITION SENSOR
Top of EGR control valve.

EGR SOLENOID VALVES (VACUUM & VENT)
Rear of intake manifold.

FUEL INJECTORS
In fuel rail, beneath intake manifold.

IDLE SWITCH
Integral part of throttle sensor.

IGNITER
Integral part of distributor assembly.

INHIBITOR SWITCH
On transaxle.

INTAKE AIR THERMOSENSOR
Integral with air flow meter.

IDLE SPEED CONTROL (ISC) VALVE
Part of BAC valve.

KNOCK SENSOR
In valley between cylinder heads.

MAIN RELAY
In relay box, right front engine compartment.

MALFUNCTION INDICATOR LAMP (MIL)
Instrument panel.

OXYGEN SENSOR LEFT SIDE
Screwed into left exhaust pipe, just below manifold.

OXYGEN SENSOR RIGHT SIDE
Screwed into right exhaust pipe, just below manifold.

POWER STEERING PRESSURE SWITCH
On power steering pump, at high pressure outlet.

PURGE CONTROL SOLENOID
Center of fire wall at rear of engine compartment.

STOP LIGHT SWITCH
Beneath dash, activated by brake pedal.

THROTTLE SENSOR
Mounted on throttle body.

VARIABLE RESONANCE INDUCTION SYSTEM (VRIS) SOLENOIDS
On rear of intake manifold, near shutter valve actuators.

VEHICLE SPEED SENSOR
Integral part of speedometer head.

WATER THERMOSENSOR
Water outlet at front center of intake manifold.