PleasureCraft Engine Group 5.0L User Manual

6.0/8.1L Electronic Ignition 4B - 1
MEFI 4 - PCM
Marine Electronic Fuel Injection (MEFI 4)
Section 4B
Electronic Ignition
This section will describe the Electronic Ignition (EI) System used on the 6.0L and 8.1L engines. The EI system uses an
individual ignition coil for each cylinder. The section explains the individual components of the Electronic Ignition System.
Distributor Ignition System is explained in Section 4A.
Contents
Ignition System Specifi cations ...............................Page 2
Fastener Tightening Specifi cations ........................Page 2
Electronic Ignition (EI) System Description............Page 3
Ignition System Overview ................................Page 3
Crankshaft Position (CKP) Sensor and Reluctor
Wheel...............................................................Page 3
Camshaft Position (CMP) Sensor and Reluctor
Wheel...............................................................Page 4
Ignition Coils ....................................................Page 4
Noteworthy Ignition Information .......................Page 5
Engine Control Module (ECM) ...............................Page 5
Knock Sensor (KS) System Description.................Page 6
Purpose............................................................Page 6
Operation .........................................................Page 6
Normal Knock Signal .......................................Page 6
Abnormal Knock Signal ...................................Page 6
Ignition Coil(s) Replacement ................................. Page 7
Spark Plug Wire Replacement .............................. Page 7
Spark Plug Wire Inspection ............................Page 8
Spark Plug Replacement ......................................Page 9
Spark Plug Usage........................................... Page 9
Spark Plug Inspection..................................... Page 9
Spark Plug Visual Inspection........................ Page 11
Crankshaft Position (CKP) Sensor
Replacement - 6.0L............................................. Page 13
Crankshaft Position (CKP) Sensor
Replacement - 8.1L............................................. Page 14
Camshaft Position (CMP) Sensor
Replacement - 6.0L............................................. Page 15
Camshaft Position (CMP) Sensor
Replacement - 8.1L............................................. Page 16
Knock Sensors (KS) Replacement - 6.0L ........... Page 16
Knock Sensor (KS) 1 Replacement - 8.1L.......... Page 18
Knock Sensor (KS) 2 Replacement - 8.1L.......... Page 19

PleasureCraft Engine Group 5.0L Specifications

General

Brand	PleasureCraft Engine Group
Model	5.0L
Category	Engine
Language	English