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P0450 Diagnostic Trouble Code Discussion for March 2010

EVAP System Pressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0450
Help Request Posted
2003 Toyota Corolla S 1.8L Poor Idle Quality, MIL Lamp on VIN: 2T1BR32E13
P0450: EVAP System Pressure Sensor Circuit Malfunction. No idle cold and low idle hot. Codes for multiple misfire all cylinders and evap psi sensor codes. I have checked basics. No intake leaks. Plugs look good. I have cleaned throtle body because throtle was sticky. Any help much apreciated. Thanks Gary
March 03, 2010