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Engine management warning light consistently on

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  • [Corsa D 2006-2014] Engine management warning light consistently on

    Hi I have a 1.2 corsa 2012 plate. I've had the engine management warning light consistently on. I've used a OBD computer and this is the error message I get P00B4 does anyone know which one it is as I have 3 sensors on the car???

  • #2
    P00B4 - Generic
    Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
    Description
    Radiator Coolant Temperature Sensor Circuit High

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    • #3
      The CTS is a relatively common failure which will cause the ECU to think the engine is always running cold. You may find it will run fine with the EML on, but you may have problems with hot restarts. They are pretty cheap and very easy to replace.
      1972 Viva restoration thread - http://www.thecorsa.co.uk/projects-b....html#post1534

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