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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 179 (Engine Control System (2GR-FSE) - DTC P050B - P2A03, DTC U0101) >> DTC P2420 Evaporative Emission System Switching Valve Control Circuit High >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART

DTC No. Monitoring Item DTC Detection Condition Trouble Area Detection Timing Detection Logic
P2420 Vent valve stuck open (vent) The following condition is met during key-off EVAP monitor:
  • EVAP pressure change when vent valve is closed (ON) less than 2.3 mmHg
  • Pump module (0.02 inch orifice, vacuum pump, vent valve)
  • Connector / wire harness (Pump module - ECM)
  • ECM
 Engine switch off 2 trips
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