Fuel-Cut Control System

Tachometer Connection DLC-1:

1. Connect a tachometer to the data link connector terminal IG-.

SSTs Engine Signal Monitor:

2. Connect the Special Service Tool (SST) to the Powertrain Control Module (PCM).
3. Warm up the engine to normal operating temperature and let it idle.

SSTs Engine Signal Monitor Details:

4. Set the SST to positions 40, 4U, 4Y, 4AC, 4AG and 4AK and make sure the green and red lights flash alternately at each position.
5. Increase the engine speed to 4,000 rpm; then suddenly release the throttle.

SSTs Engine Signal Monitor Details:

6. Verify that the red indicator lamp illuminates while the engine speed is above approximately 1,200 rpm (MTX)/ 1,500 rpm (ATX) on deceleration.

SSTs Engine Signal Monitor Details:

7. Increase the engine speed and verify that the maximum rpm does not exceed the specification.

CAUTION: Holding the maximum rpm for more than 3 seconds can damage the engine.

Specification: Approx. 7,500 rpm