jaguar Workshop Repair Guides

Jaguar Workshop Service and Repair Manuals

Relays and Modules - Power and Ground Distribution > < Diagram Information and Instructions|Page 5222
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Grounding Point: Technical Service Bulletins
EFI Harness Ground Point - Location

Date 10/01/83
ITEM:

J83/58

SUBJECT:

EFI HARNESS GROUND POINTS

MODEL:

XJ6 & VANDEN PLAS

It is important that when diagnosing problems with the fuel injection system that particular attention is paid to the EFI harness ground point at the rear of
the water rail next to the air injection switching temperature sensor.

Sometimes overlooked is an additional ground point on the cylinder head to the rear of the water rail. This incorporates a braided link wire from the
water rail ground together with a separate ground wire for the coolant temperature sensor.

Poor contact at either of these ground points can be responsible for intermittant faults in the fuel injection system.

Relays and Modules - Power and Ground Distribution > < Diagram Information and Instructions|Page 5222