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7.0 SYSTEM DIAGRAMS AND REFERENCE MATERIAL
This section provides numerous reference diagrams and measurement tables to
assist in the diagnosis of L-Jetronic fuel injection problems.
Dual Relay Drawing The following drawing is a diagram of the bottom of the dual
relay located on the back left side of engine compartment. The accompanying
table provides pin functions and voltage readings for the dual relay. All voltage
and resistance measurements can be take either at the component, or at a
convenient pin on an associated plug along the wiring harness. The right side of
the drawing is located adjacent to the bulkhead of the left rear engine
compartment and is attached by a bolt. Please note that on the relay itself, the
contact pins are different in size, which the drawing depicts.
Fuel Injection
Side
Fuel Pump &
Ignition Side
88b
88c
88a 86b86
88z86c 85
88y
88d
86a