Test Equipment

The equipment required for testing includes: tachometer, hand vacuum pump, digital volt-ohmmeter (minimum 10 megohm impedance), dwell meter, and jumper wires.

NOTE: The metering pins operate in tandem. Only the upper pin is visible.

NOTE: Any Jeep model with altitude modification performed MUST have an Emission Control Information Update label installed. Contact dealer for more information pertaining to the emission laws for your area.

Fig 1: View of Altitude Jumper Wire (4-Cylinder) Jumper must be installed for vehicles operated above 4000 feet.