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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0442 Or DTC P0456 >> Detection Conditions

Detection Conditions

DTC P0442 indicates a leak has been detected as small as 0.04" (1 mm) in EVAP canister purge valve solenoid system. There is less than 2.5 in. H2 O (0.625 kPa) bleed-up over 15 seconds at 75 percent fuel fill level. Bleed-up and evaluation time vary as a function of fuel fill level. Vapor generation limit is more than 2.5 in. H2 O (0.625 kPa) over 120 seconds.

DTC P0456 indicates a fuel vapor leak from an opening as small as .020" (.51mm) has been detected by EVAP running loss monitor test.

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