Fuel Shut Off Valve [Eab (Electrical Shut Off)] - Mercury MerCruiser D2.8L D-Tronic Service Manual

EDI DIAGNOSIS

Fuel Shut Off Valve [EAB (Electrical Shut Off)]

Scan Code:
Blink Code:
Malfunction Indicator Lamp:
CIRCUIT DESCRIPTION:
As a safety feature the engine is equipped with a Fuel Shut Off Valve (Electrical Shut Off).
This valve is a redundant method of stopping the engine. In case of a defect in a part or parts
of the EDI system, which would prevent the engine from stopping, the ECM can energize
this valve to positively stop the flow of fuel. This valve is similar as on the previous Indirect
Injection systems but is controlled by the ECM. A 12 volt current is supplied to CKT Pin 53
which energizes the valve and stops the flow of fuel to the injectors when required.
A failure in the Fuel Shut Off Valve circuit should set a Scan Code P1660.
53
Page 5E-62
b
a
a - Fuel Injection Pump
b - Fuel Shut Off Valve
c - ECM Controlled12 Volt Power Supply
CKT PIN
Fuel Shut Off Valve
SERVICE MANUAL NUMBER 22
P1660
1221
ON
YEL
NAME
90-860074--1 FEBRUARY 2002
ECM
c
53
75409