Operation CHARM: Car repair manuals for everyone.

Throttle Body Injection (TBI)

NOTE: Timing specifications are listed on the Vehicle Emissions Control Information label under the hood. Always follow the Vehicle Emissions Control Information label procedures first before using the following procedure.

PROCEDURE:

Set timing under the following conditions:

^ Normal operating temperature.
^ Air cleaner installed.
^ A/C "OFF".
^ Transmission in neutral.
^ Disconnect SET TIMING connector (tan/black wire) located in harness close to distributor. DO NOT disconnect 4 wire connector at distributor.
^ Connect timing light and adjust as necessary by loosening hold down bolt and rotating distributor.

Refer to specifications: Specifications

^ Tighten hold down and recheck the timing.
^ Stop the engine and connect SET TIMING connector.
^ Clear ECM trouble code by disconnecting ECM power source.