A/C System Performance

WARNING: This page is about a different car, the 1999 Acura 3.0CL and 1999 Acura 2.3CL. However, it is still accessible from the selected car via links, so may be relevant.

Park vehicle out of direct sunlight. Open engine hood. Open front doors. Connect A/C pressure gauges to pressure ports. Measure relative humidity. Measure ambient air temperature.
Move temperature control lever to coldest setting. Select vent mode. Select recirculated air. Insert a thermometer in center vent outlet. Turn A/C switch on, and set blower switch to highest speed. Run engine at 1500 RPM. Ensure no one is inside vehicle.
After running A/C for 10 minutes, check temperature at center vent outlet. Check system pressures. If temperature and pressures match A/C system performance test chart, system is operating within range. See Fig 1 , Fig 2 , Fig 3 or Fig 4 .

Fig 1: 2.3CL A/C System Performance Test Chart (°F & psi)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: 2.3CL A/C System Performance Test Chart (°C & kg/cm² )

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: 3.0CL A/C System Performance Test Chart (°F & psi)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 4: 3.0CL A/C System Performance Test Chart (°C & kg/cm² )

Courtesy of AMERICAN HONDA MOTOR CO., INC.