FUEL INJECTION DESCRIPTIONS AND SYSTEM OPERATION
SERVICE MANUAL NUMBER 24
Base Ignition Timing
In order to check or change base timing on a EFI system the ECM has to be entered into
the service mode by using a scan tool or code tool. The ECM will stabilize timing to allow
timing adjustment. The ECM incorporates a spark control override, which allows timing to
be lowered if spark knock (detonation) is encountered during normal operation. At this time,
the timing can be adjusted by turning the distributor.
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Distributor Module Mode
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ECM Control Module
Index
Page 5D-22
90-861327 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 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 Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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