Fuel System
Section 7B - Troubleshooting and Diagnostics
Table of Contents
Fuel Component Troubleshooting and Diagnostics........... 7B-2
Antisiphon Valves....................................................... 7B-2
Fuel Supply Module (FSM)......................................... 7B-2
Fuel Lift Pump ............................................................7B-2
High‑Pressure Fuel Pump.......................................... 7B-3
Fuel Pressure Calculations, Engine Running............. 7B-4
Fuel Injector Resistance Test..................................... 7B-4
Wire Color Code Abbreviations.................................. 7B-5
Fuel Injector Circuits................................................... 7B-6
Troubleshooting and Diagnostics
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 7B-1
7
B
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