SERVICE MANUAL NUMBER 23
FUEL INJECTION SYSTEM TROUBLESHOOTING
FUEL SYSTEM
Section 5D - Fuel Injection System Troubleshooting
Table of Contents
Troubleshooting . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Codes for the
MEFI 1 454 / 502 Mag MPI and
5D-2
Visual/Physical Check . . . . . . . . . . . . .
Hard Start Symptom . . . . . . . . . . . . . .
Surges and/or Chuggles Symptom . .
Lack of Power, Sluggish or Spongy
Symptom . . . . . . . . . . . . . . . . . . . . . . . 5D-13
Detonation/Spark Knock Symptom . . 5D-16
Hesitation, Sag, Stumble Symptom . 5D-19
Cuts Out, Misses Symptom . . . . . . . . 5D-21
Rough, Unstable, or Incorrect Idle,
Stalling Symptom . . . . . . . . . . . . . . . . 5D-23
Poor Fuel Economy Symptom . . . . . . 5D-27
Dieseling, Run-On Symptom . . . . . . . 5D-29
Backfire Symptom . . . . . . . . . . . . . . . . 5D-30
5D-6
5D-8
5D-11
8.2L
MPI Engines . . . . . . . . . . . . . . .
5D-2
5D-2
Diagnostic Trouble Codes for the
MEFI 2 7.4L MPI Engines . . . . . . . .
Diagnostic Trouble Codes for the
MEFI 3 454 cid (7.4L)/502 cid
(8.2L)
Engines . . . . . . . . . . . . . . . . . .
5D-3
Scan Tool Normal Specifications (Idle /
Warm Engine / Closed Throttle /
Neutral) . . . . . . . . . . . . . . . . . . . . . . . .
Important Preliminary Checks . . . . . .
5D-5
5D-6
5
D
Index
90-861326--1 MARCH 1999
Page 5D-1
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...