240
Cap.
3. Remove Spark Plug Wires from the Distributor
Cap by pulling and twisting each Spark Plug
Wire boot ½ turn.
4. Remove Ignition Coil wire.
5. Remove the electrical connector from the
base of the Distributor.
6. Remove the two Screws that hold the Distribu-
tor Cap to the housing and remove Cap.
7. Using a grease pencil or similar marking tool,
mark the location of the Rotor on the distribu-
tor housing and engine.
8. Remove the Distributor hold down bolt.
IMPORTANT
Do not engage the starter, or change the positions
of the cam or crankshaft, timing gears or any oth-
er internal engine components while the
distributor is removed. Any change in the position
of these components will alter the timing.
INSTALLATION PROCEDURE
1. Align the Rotor with the mark made on the
Distributor housing (the location of the rotor
when it was removed) and place into the en-
gine ensuring the rotor, distributor housing
and the mark on the engine are all in align-
ment when the Distributor is fully seated.
2. Install the Distributor mounting clam Bolt and
tighten to 18 ft. lbs (25 Nm). Verify that the
rotor and Distributor housing remain in line
with the mark.
3. Install Distributor Cap.
IMPORTANT
Do not reuse old Distributor Cap Screws. Use
new Screws only.
4. Connect the electrical connection to the base
of the Distributor.
5. Connect Spark Plug wires to the Distributor
Cap, ensuring the wires are connected to the
correct cylinder. NOTE that the firing order is
1-3-4-2. Refer to the IGNITION SYSTEM
SPECIFICATIONS in the Appendix for addi-
tional information.
6. Connect Ignition Coil wire to Distributor Cap.
7. Reconnect negative battery cable.
8. Start engine. Run engine through all throttle
ranges and under load to ensure normal oper-
ation.
9. Using the DST, clear DTC information from
the ECM.
10. If a DTC code is found, refer to the Electrical
Section for further diagnosis.
VI. TEMPERATURE MANIFOLD PRESSURE
SENSOR (TMAP)
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Locate the TMAP Sensor on the Intake Mani-
fold plenum.
3. Disconnect electrical connector.
4. Remove the retaining screw.
5. Remove TMAP Sensor by pulling straight up
with a slight rocking motion.
TMAP Sensor
INSTALLATION PROCEDURE
1. Install the TMAP and secure with Retaining
Screw. Torque to 7-9 ft.lbs. (9.5-12.2 Nm).
2. Reconnect electrical connector.
3. Reconnect the negative battery cable.
4. Start engine and run until it reaches normal
operating temperature.
5. Check for MIL illumination. If a DTC code is
found, refer to the Electrical Section for further
diagnosis.
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