Emission Control Systems: Locations

Component Locations:

Diagnostic Connectors:

A/C RELAY
Left side of firewall in engine compartment.

CANISTER PURGE CONTROL SOLENOID
The purge control solenoid is located in the engine compartment near the canister, right side fender well.

CLUTCH SWITCH
The clutch switch is located under the dash next to the clutch pedal assembly.

COASTING FUEL CUT SOLENOID
Also called the anti-dieseling switch, this solenoid is located on the carburetor.

CRANK ANGLE SENSOR
The distributor is located on the left end of the transverse engine cylinder head. The crank angle sensor is an integral part of the distributor.

DIAGNOSTIC CONNECTORS
Under L.H. side of dash.

DUTY SOLENOID
The duty solenoid is an integral part of the carburetor.

ELECTRONIC CONTROL UNIT
Under L.H. side of dash.

ENGINE COOLANT TEMPERATURE SENSOR
The sensor is threaded into the water jacket on L.H. side of intake manifold.

EGR SOLENOID
On the firewall near the brake master cylinder.

EGR TEMPERATURE SENSOR
The EGR temperature sensor screws into the intake manifold exhaust gas passage. It is on the underside of the manifold beneath the carburetor and near the EGR valve.

FLOAT CHAMBER VENT SOLENOID
The float chamber vent solenoid is an integral part of the carburetor.

FUEL PUMP RELAY
Under the L.H. side of the dash, next to the ECU.

HIGH ALTITUDE COMPENSATOR
Air passage is integral part of carburetor. Solenoid is on R.H. side of firewall.

IDLE-UP COMPONENTS
AUTOMATIC TRANSMISSION
^ Idle-up solenoid is on the firewall near the brake master cylinder.
^ Fast Idle Control Device (FICD) solenoid is on the firewall near the windshield wiper motor.
^ Idle-up actuator is on the carburetor, near choke linkages.
^ FICD actuator is on the front of the carburetor body.
MANUAL TRANSMISSION
^ Idle-up solenoid is on the firewall near the brake master cylinder.
^ Fast Idle Control Device (FICD), A/C idle-up solenoid, is on the firewall near the windshield wiper motor.
^ Idle-up actuator is on the carburetor.

IGNITION RELAY
Behind L.H. side of dash (white connector).

IGNITION SYSTEM IGNITOR/POWER TRANSISTOR
The ignition system ignitor/power transistor is an integral part of the ignition coil, located in the engine compartment, left side firewall.

O2 SENSOR
In the exhaust manifold.

RADIATOR FAN RELAY
Under the L.H. side of the dash, next to the ECU (White 4-pin connector).

VACUUM / ATMOSPHERIC PRESSURE SENSOR
Attached to a bracket on the R.F. fender apron.

VACUUM LINE CONTROL SOLENOID
Attached to a bracket on the R.F. fender apron.

VEHICLE SPEED SENSOR
The vehicle speed sensor is an integral part of the speedometer in the combination meter assembly.