oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

Number One Cylinder > < Ignition Firing Order
Page 1
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Ignition Timing Connector: Locations

EST BY-PASS CONNECTOR

EST Bypass Connector

The EST By-Pass (Set Timing) connector (tan/black wire) is located in the harness close to distributor. DO NOT disconnect the 4 wire connector at
distributor.

Number One Cylinder > < Ignition Firing Order