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P1111 Diagnostic Trouble Code Discussion for March 2013

IAT Sensor Circuit Intermittent High Voltage


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Trouble Ticket Help Requests for DTC P1111
Help Request Posted
2003 Volkswagen Passat GLS 1.8L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: WVWPD63B83
P1111: . we smoked checked the intake system. the new vent valve diaphram was blown again. we replaced the diaphram again and it blew again. i found a collapsed vac hose to evap system. Does anyone know what would cause the vacuum vent valve to keep going bad? are the ...
March 29, 2013
2003 Volkswagen Passat GLS 1.8L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: WVWPD63B83
P1111: . we smoked checked the intake system. the new vent valve diaphram was blown again. we replaced the diaphram again and it blew again. i found a collapsed vac hose to evap system. Does anyone know what would cause the vacuum vent valve to keep going bad? are the ...
March 29, 2013