Test DN: Step 90

90) Continuous Memory Code 32: Check EVP Signal Voltage While Operating EVP Sensor  Code 32 indicates that EGR valve closed further than normal with engine at idle and at normal operating temperature or that EVP sensor has failed with an intermittent low voltage spike symptom. Possible causes for this fault are an obstructed vacuum valve, a faulty EVP sensor or EGR valve. Turn key off and wait 10 seconds. Disconnect ECA 60-pin connector. Inspect for and repair any damaged wiring. Install breakout box and connect ECA. Disconnect vacuum hose at EGR valve. Connect a vacuum pump to EGR valve. Set DVOM on 20-volt scale. With KOEO, measure voltage between test pins No. 27 and 46 while slowly applying 6 in. Hg to EGR valve. Slowly bleed vacuum off EGR valve and lightly tap on EVP sensor to simulate road shock. If voltage drops to less than .24 volt, the EGR valve may have caused Code 32. Clear Continuous Memory Codes. Check EGR valve for mechanical malfunction. If all readings are more than .24 volt, go to next step.