EEC IV Diagnostic Routines;

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 5

Symptom​
OASIS Number​
Unique Idle Concerns
—Slow Return to Idle​
617400​



a16141b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 6

Symptom​
OASIS Number​
Unique Idle Concerns
—Rolling Idle​
618400​
Runs Rough
608000​
—Idle​
608400​



a16142b.gif



a16143b.gif



a16144b.gif



a16310b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 7

Symptom​
OASIS Number​
Unique Idle Concerns
—Fast Idle​
619400​
Additional Driveability Concerns
—Diesels/Runs On​
621000​

Note: If the vehicle runs normally after the ignition key is turned off, check for faulty ignition switch, IGN RUN circuit short to power, etc. Refer to Service Manual.



a16145b.gif



a16311b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 8

Symptom​
OASIS Number​
Unique Idle Concerns
—Low Idle​
Stalls/Quits
607000​
—Deceleration​
607700​



a16146b.gif



a16147b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 9

Symptom​
OASIS Number​
Stalls/Quits
607000​
—Acceleration​
607500​
—Cruise​
607600​
Runs Rough
608000​
—Acceleration​
608500​
—Cruise​
608600​
Misses
609000​
—Acceleration​
609500​
—Cruise​
609600​
Buck/****
610000​
—Acceleration​
610500​
—Cruise​
610600​
—Deceleration​
610700​
Hesitation/Stumble
611000​
—Acceleration​
611500​



a16148b.gif



a16150b.gif



a16312b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 11

Symptom​
OASIS Number​
Surge
612000​
—Acceleration​
612500​
—Cruise​
612600​



a16276b.gif



a16277b.gif



a16278b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 12

Symptom​
OASIS Number​
Backfires
613000​
—Idle​
613400​
—Acceleration​
613500​
—Deceleration​
613600​



a16279b.gif



a16313b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 13

Symptom​
OASIS Number​
Lack/Loss of Power
614000​
—Acceleration​
614500​
—Cruise​
614600​

Note: Verify symptom is reported under normal driving conditions without engine/vehicle excessive load conditions.



a16280b.gif



a16281b.gif



a16314b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 14

Symptom​
OASIS Number​
Spark Knock
615000​
—Acceleration​
615500​
—Cruise​
615600​



a16282b.gif



a16283b.gif
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Index
Gasoline Engines
Driveability​
OASIS Number​
Chart Number​
Starting​
No Crank​
601300​
1
Concerns​
Hard Start/Long Crank/Erratic Start/Erratic Crank​
602300​
2
Stall After Start​
—​
3
No Start/Normal Crank​
603300​
4
Unique​
Slow Return to Idle​
617400​
5
Idle​
Rolling Idle​
618400​
6
Concerns​
Fast Idle​
619400​
7
Low/Slow Idle​
—​
8
Driveability — Performance While Driving Concerns
Stalls/Quits​
Idle​
607400​
3
(607000)​
Acceleration​
607500​
9
Cruise​
607600​
9
Deceleration​
607700​
8
Runs Rough​
Idle​
608400​
6
(608000)​
Acceleration​
608500​
9
Cruise​
608600​
9
Misses​
Idle​
609500​
6
(609000)​
Acceleration​
609500​
9
Cruise​
609600​
9
Buck/****​
Acceleration​
610500​
9
(610000)​
Cruise​
610600​
9
Deceleration​
610700​
9
Hesitation/Stumble
(611000)​
Acceleration​
611500​
9
Surge​
Acceleration​
612500​
11
(612000)​
Cruise​
612600​
11
Backfires​
Idle​
613400​
12
(613000)​
Acceleration​
613500​
12
Deceleration​
613600​
12
Lack/Loss of Power​
Acceleration​
614500​
13
(614000)​
Cruise​
614600​
13
Spark Knock​
Acceleration​
615500​
14
(615000)​
Cruise​
615600​
14
Additional Driveability Concerns
Diesels/
Runs On​
621000​
7
Poor Fuel
Economy​
622000​
15
Emissions
Compliance​
623000​
16
Malfunction Indicator Light (MIL) Concern
DCL Message Received (Continental Only)​
698298
698198​
17
Electrical
H
Warning Indicators​
—MIL​
206000​
17
—DCL (Continental Only)​
698298​
—TCIL, 4x4 Low, SIL​
698198​
Climate Control​
Lack of cooling (AC) (AC not functioning)​
208200​
29
(208000)​
AC always ON/AC compressor runs continuously​
—​
30
A/C does not cut off under WOT conditions.
(Applications with WAC circuitry)​
—​
31
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
Instrumentation
—Tachometer Inoperative​
204000
204128
204228​
19
Lighting Systems-Exterior Lighting​
201000​
—Stoplamps always on​
201228​
—Stoplamps always off​
—​
33
Driveline
Manual Transmission Concern​
—Shift Indicator Lamp​
505698​
17
Automatic Transmission Shift Concerns​
—A/T upshift concern​
501000​
—A/T downshift concern​
502000​
18
—Engagement concern​
503000​
Engine
Oil System Concerns​
401000​
—High Oil Consumption​
401100​
20
—Leaks​
401800​
Cooling​
Overheating​
402300​
21
System​
Runs Cold​
—​
22
Concerns​
Electric cooling fan never runs​
—​
21
(402000)​
Electric cooling fan always runs​
—​
22
Exhaust System Concerns​
Visible Smoke​
403400​
23
(403000)​
Odor (Sulphur/"rotten egg" smell)​
403596​
34
Fuel System Concerns
(404000)​
404201​
24
—Odor, Engine Compartment​
Engine Noise (Under Hood)​
497000​
25
Governor will not Limit rpm (7.0L MFI)​
—​
27
Noise/Vibration
Vibration Concerns​
703000​
26
No Symptoms Present
EEC-IV Quick Test​
—​
32
DIESEL ENGINES
All driveability symptoms​
—​
28
 
OP
OP
miesk5

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
9,071
Reaction score
1,018
Location
Floating in the Pacific
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 13

Symptom​
OASIS Number​
Lack/Loss of Power
614000​
—Acceleration​
614500​
—Cruise​
614600​

Note: Verify symptom is reported under normal driving conditions without engine/vehicle excessive load conditions.



a16280b.gif



a16281b.gif



a16314b.gif
 

Members online

No members online now.

Latest posts

Forum statistics

Threads
22,509
Messages
135,879
Members
25,108
Latest member
Utahstroke
Top