Engine Cranks but Will Not Run (Continued)
Chart A-3: (4 of 4)
FROM
A-3
(2
OF 4)
NO BLINKING LIGHT
AT INJECTOR
NO LIGHT
STEADY LIGHT
1
•
•
IGNITION “ON.”
•
CHECK INJECTOR DRIVER CIRCUIT WITH TEST
LIGHT FOR SHORT TO GROUND.
IF CIRCUIT IS NOT SHORTED, CHECK RESISTANCE
ACROSS EACH INJECTOR IN THE CIRCUIT.
RESISTANCE SHOULD BE 12 OHMS + .4.
PROBE INJECTOR HARNESS
TERMINALS WITH A TEST LIGHT TO
GROUND.
LIGHT SHOULD BE “ON” AT BOTH
TERMINALS.
•
•
•
OK
NOT OK
FAULTY ECM
REPAIR SHORT TO GROUND
OR REPLACE ANY INJECTOR
THAT MEASURES UNDER 12
OHMS ± .4 OHMS.
LIGHT “ON” BOTH
LIGHT “ON” ONE
LIGHT “OFF” BOTH
2
•
•
•
•
•
RECONNECT INJECTOR(S)
IGNITION “OFF.”
DISCONNECT ECM
IGNITION “ON.”
PROBE TERMINALS “J2-21” AND “J2-5”
WITH A TEST LIGHT TO GROUND.
DUE TO INJECTORS WIRED IN
PARALLEL, THERE SHOULD BE A
LIGHT ON BOTH TERMINALS.
REPAIR OPEN IN INJECTOR
FEED CIRCUIT.
IF NOT, THE PROBLEM IS AN OPEN
IN THE HARNESS TO THE TESTED
INJECTOR.
LIGHT “ON”
LIGHT “OFF”
3
REFER TO FACING PAGE.
OPEN CKT 467 OR 468
Index
90-823224--2 796
ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5C-59
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
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