DR-18E Sensor Calibration MAP Sensor

COMPLETE DRIVEABILITY TEST 18-STEP D BEFORE PROCEEDING.
This test must be performed with engine at normal operating temperature.
1. With diagnostic readout box connected to engine harness connector, tee a vacuum gauge into vacuum line at the MAP sensor.
2. Start engine, then enter system into Engine Running Test Mode 68.
3. If display indicates vacuum within one inch of vacuum shown on gauge, proceed to Step G.
4. If displayed vacuum is not within one inch of vacuum shown on gauge, proceed to Step F.