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Mercury 225 EFI - Detonation Control System Test (200 Work Models Only)

Mercury 225 EFI
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FUEL INJECTION
Page 3B-34 90-884294 OCTOBER 2001
Temperature Sensor Specifications
Fahrenheit Centigrade OHMS
167 75 1480
158 70 1752
149 65 2083
140 60 2488
131 55 2986
122 50 3603
113 45 4370
104 40 5327
95 35 6530
86 30 8056
77 25 10000
68 20 12493
59 15 15714
50 10 19903
41 5 25396
32 0 32654
14 –10 55319
5 –15 72940
Detonation Control System Test (200 Work Models Only)
59034
a
a
a-Knock Sensor
Purpose: Determines whether the detonation sensor and circuit located in the ECM is functioning.
1. Place outboard in water, connect Digital Diagnostic Terminal (DDT) to engine.
NOTE: If either knock sensor is not functioning, #4 LED indicator light on DDT will be illumi-
nated.
2. Start engine, allow to warm up. Using SPECIAL FUNCTIONS portion of DDT, access
KNOCK OUTPUT LOAD TEST.

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