plymouth Workshop Repair Guides

Plymouth Workshop Service and Repair Manuals

Throttle Position Sensor > < Carburetor Switch <--> [Throttle Full Close Switch]|Description and Operation
Page 1
background image

Carburetor Switch: Testing and Inspection

    On most systems, grounding the carburetor switch eliminates all spark advance.

1.

With ignition key in Off position, disconnect 10-way electrical connector from computer.

2.

With throttle fully closed, connect an ohmmeter and check continuity between pin 7 and ground. If there is no continuity, check wire and 
carburetor switch. Recheck basic ignition timing.

3.

With throttle opened, check continuity between pin 7 and ground. There should be no continuity.

Throttle Position Sensor > < Carburetor Switch <--> [Throttle Full Close Switch]|Description and Operation