Pontiac Fiero 1988 Service Manual page 419

6D4 6 IGNITION SYSTEM
ON-CAR S E R V I C E
DISTRIBUTORLESS IGNITION - 2.5L
The 2.5L Direct Ignition System (D1S) consists
of the following serviceable components:
1. Individual coils (2).
2. Ignition module - Service as a complete unit.
3. Crankshaft sensor - Attached below Ignition
Module (inserts through Mock above pan rail).
Service as a complete unit.
4. ECM (see section 6E2 or 6E3).
IGNITION COIL
T
2.
3.
4.
Remove or Disconnect
Negative battery cable.
Spark plug wires.
Coil attaching nuts.
Coil (do not bend module prongs).
* « - | Install or Connect
Coil
Coil attaching nuts.
Spark plug wires.
Negative battery cable.
1.
2.
3.
4.
IGNITION MODULE
|«--M Remove or Disconnect
1. Negative battery cable.
2. Module connectors.
3. Plug wires at coil.
4. Module attaching bolts and nuts.
5. Module.
NOTICE:
Sensor is attached below module.
Module must be removed slowly and carefully to
avoid damage to sensor.
Install or Connect
Module (insert sensor carefully in hole above pan
rail).
Module attaching bolts and nuts.
Plug wires at coil.
Module connectors.
Negative battery cable.
1+4-1
7
2.
3.
4.
5.
SENSOR
Remove or Disconnect
1. Ignition module.
2. Unplug sensor.
H H H Install or Connect
1. Replug sensor.
2. Ignition module.
IGNITION SYSTEM - 2.8L
Distributor
1.
2.
3.
4.
5.
6.
7,
s
1.
2.
3.
5.
6.
Remove or Disconnect
Battery ground cable.
Distributor wiring harness at coil.
Distributor cap and position out of way.
Coil assembly, see Ignition Coil Removal.
Scribe a mark on the engine in line with rotor.
Note approximate position of distributor housing
in relation to engine.
Distributor hold-down nut and clamp.
Lift distributor from engine.
Install or Connect
Distributor, orienting rotor.
Distributor hold-down clamp and nut.
Move distributor housing to approximate
position relative to engine noted during removal.
Position distributor cap to housing with tab in
base of cap aligned with notch in housing and
secure the two latches.
Wiring harness connector to terminals on side of
distributor cap. Connector will fit only one way.
Adjust ignition timing.
IGNITION COIL
1.
2.
3.
Remove or Disconnect
Shield.
Ignition switch to coil lead.
Coil to distributor lead.
Coil to bracket screws.'
k<H Install or Connect
i •
1. Coil to bracket screws.
2. Coil to distributor lead.
3. Coil to ignition switch lead.
4. Shield.