Pontiac Fiero 1988 Service Manual page 424

ENGINE WIRING 6D5-1
SECTION 6D5
ENGINE WIRING
CONTENTS
General Description 6D5-1 On-Car Service 6D5-1
Engine Wiring Harness
6D5-1
GENERAL DESCRIPTION
The engine electrical system includes the battery,
ignition (primary and secondary), starter (and related
wiring) and the generator (and related wiring).
Diagnostic charts (see Section 6D) will aid in
trouble-shooting system faults. When a fault is traced
to a particular component, refer to that components'
section of the service manual.
ON-CAR S E R V I C E
1- ENGINE WIRING HARNESS
2 - POSITIVE BATTERY CABLE
3 - TRANSMISSION CLUTCH
CONN.
4 - SYSTEM GROUND
5 - COOLING FAN TEMP. SW.
6 - TO POSITIVE BATTERY
TERMINAL
7 - 02 SENSOR CONN.
8 - A/C COMPRESSOR CONN.
9 - HIGH PRESSURE SWITCH
CONN.
1 0 - COOLING FAN SWITCH
CONN.
1 1 - TEMP. SWITCH LEAD
1 2 - TACH FILTER
1 3 - COIL LEAD
14- DISTRIBUTOR CONN.
1 5 - SPEED SENSOR LEAD
16- OfL PRESSURE SWITCH CONN.
1 7 - TO AIR CONDENSOR
18 - T O JUNCTION BLOCK
1 9 - MAP SENSOR CONN.
2 0 - THROTTLE POSITION SENSOR
CONN.
2 1 - FUEL INJECTOR CONN.
2 2 - IDLE AIR CONN.
520188-6P
Fig. 801 Engine Wiring - Front (LR8)