Test Equipment

Test equipment needed to perform these tests include: tachometer, hand vacuum pump, digital volt-ohmmeter with minimum 10 megohm impedance and jumper wires.
Before beginning test procedures, an air cleaner cover must be fabricated from clear acrylic plastic at least 1/4" thick. This is secured with air cleaner wing nut, after top of air cleaner has been removed, so that operation and position of metering pins can be observed during testing. See Fig 1.
Begin testing with Test No. 1 and proceed to other tests in order. Perform "Fig 4" when referred to in other tests.
NOTE: The metering pins operate in tandem. Only the upper pin is visible.

Fig 1: Dimensions for Clear Air Cleaner Cover
Courtesy of CHRYSLER GROUP, LLC

Install clear cover in place of stock air cleaner top to observe metering pin operation.

TEST CHARTS

Chart	Condition
......	Basic Engine Test
No. 1	Initialization test.
No. 2	Open loop switch test.
No. 3	Closed loop operational test.
No. 4	Electronic ignition retard test.
No. 5	Oxygen sensor and closed loop test.
No. 6	Air injection system test.
No. 7	Divert solenoid test.
No. 8	Upstream solenoid test.
No. 9	Idle speed control system test.
No. 10	Sole-Vac vacuum switching solenoid test.
No. 11	Sole-Vac idle speed relay test.