Without Consult

OVERALL FUNCTION CHECK
Instead of performing DTC DETECTING CONDITION, the following method can be used for checking the Exhaust Gas Recirculation (EGR) function. (The "NG" of the OVERALL FUNCTION CHECK means the same as the Diagnostic Trouble Code (DTC) detection.)

Before starting with the following procedure, check the engine coolant temperature of the freeze frame data with CONSULT or Generic Scan Tool (GST).

If the engine coolant temperature is higher than or equal to 55°C (131°F), perform only "For the above malfunction a".

If the engine coolant temperature is lower than 55°C (131°F), perform both "For the above malfunction a" and "For the above malfunction b".




For the above malfunction b)
1. Confirm the between Engine Control Module (ECM) terminal "51" and "43" is higher than 2.08 volts. Perform the following steps before the voltage becomes lower than 2.08 volts.
2. Start engine.




3. Check for the EGR valve lifting when racing from 2,000 rpm up to 3,500 rpm under no load. EGR valve should be closed and should not lift up.