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P0442 Evap control system
DTC Logic DTC DETECTION LOGIC This diagnosis detects leakage in the EVAP purge line using engine intake manifold vacuum. If pressure does not increase, the ECM will check for leakage in the line between the fuel tank and EVAP canister purge volume control solenoid valve, under the followin ...

P0442 evap control system
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0442 is displayed with DTC P0456, first perform the trouble diagnosis for DTC P0456. Refer to EC-841, "DTC Logic". This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum. If pressure does not increa ...

Diagnosis and repair workflow
Work Flow OVERALL SEQUENCE DETAILED FLOW 1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). >> GO TO 2 2. CHECK DTC 1. Check DTC. 2. Perform the following p ...