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P1140 Diagnostic Trouble Code Discussion for February 2007

Intake Valve Timing Control Position Sensor Circuit Malfunction (Bank 1)


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Trouble Ticket Help Requests for DTC P1140
Help Request Posted
1996 BMW Z3 Roadster 1.9L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 4USCH7323T
P1140: Manufacture Controlled Fuel Air System. Hello BMW Techs out there, This little car is a real pain. It originally came in with the idle wavering between 700 and 2100 rpm up and down like it couldn't find idle speed and it smells really rich. Found the plenum adjuster (the plastic butterfly inside th...
February 20, 2007
1996 BMW Z3 Roadster 1.9L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 4USCH7323T
P1140: Manufacture Controlled Fuel Air System. Hello BMW Techs out there, This little car is a real pain. It originally came in with the idle wavering between 700 and 2100 rpm up and down like it couldn't find idle speed and it smells really rich. Found the plenum adjuster (the plastic butterfly inside th...
February 21, 2007
1996 BMW Z3 Roadster 1.9L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 4USCH7323T
P1140: Manufacture Controlled Fuel Air System. Hello BMW Techs out there, This little car is a real pain. It originally came in with the idle wavering between 700 and 2100 rpm up and down like it couldn't find idle speed and it smells really rich. Found the plenum adjuster (the plastic butterfly inside th...
February 20, 2007
1996 BMW Z3 Roadster 1.9L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 4USCH7323T
P1140: Manufacture Controlled Fuel Air System. Hello BMW Techs out there, This little car is a real pain. It originally came in with the idle wavering between 700 and 2100 rpm up and down like it couldn't find idle speed and it smells really rich. Found the plenum adjuster (the plastic butterfly inside th...
February 21, 2007