Evinrude E-tec 75 HP, Service Manual

Page: 99 / 344

99
ENGINE MANAGEMENT MODULE (EMM)
EMM DIAGNOSTICS
4
Perform timing verification after any of the follow-
ing procedures:
•
Powerhead replacement
•
Crankshaft replacement
•
Flywheel removal or replacement
•
CPS replacement
•
EMM
replacement
•
EMM
software replacement
IMPORTANT:
Make sure the timing pointer is
set and the outboard reaches operating tempera-
ture before timing verification is performed.
TPS Calibration
Use the diagnostic software
Settings
screen to tell
the
EMM
what the throttle position sensor voltage
level is when the throttle plates begin to open.
Refer to TPS Calibration on p. 143.
Perform TPS Calibration after replacing or adjust-
ing any throttle body or throttle linkage parts.
Idle Speed
Use Idle Adjust of the diagnostic software to
increase or decrease the IN GEAR IDLE speed.
This “Idle Offset” can be set for approximately 600
to 1000 RPM. The usable scale of this function is
is -250 to 100. Once “Idle Offset” is changed, the
EMM
will continue to control engine operation nor-
mally. Engine idle speed is not fixed. This idle
speed adjustment offsets (increases or
decreases) the basic
EMM
programming and will
not set an absolute fixed speed.
Fuel Injector Servicing
All fuel injectors are “compensated” and require
software programming. DO NOT install an injector
without updating the compensation software.
To install a service injector, click the “Replace”
button on the
Injector Coefficients
screen and
select the file for the replacement injector. Refer to
Fuel Injector
Installation on p. 172.
1. TPS Calibration button
006308
1
1. Idle adjustment
006309
005157
1