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    2007 Mazda 6 engine is stalling when stopped or stopping

    Mazda Mazda Advice Mazda 6 Mazda 6 Advice Mazda 6 2007
    ...

    The engine of my 2007 Mazda 6 sedan fades and then stalls when stopped, or stopping at an intersection. I can see the idle speed is about 500rpm at the point where it stops. What might the cause be and what is a solution?

    Answered by CarsGuide
    15 August 2024
    David Morley

    Most mechanics will do a complete check up and tune of the engine as part of tracking this problem and it’s a good start, because a new set of spark plugs and plug leads might just fix this problem. But that won’t always be the case. As such, you could be looking at a dud sensor somewhere in the engine bay that is telling the on-board computer to shut things down or, at least, not providing the computer with enough information to keep it all running. For this reason, an electronic scan of the vehicle should also be carried out at the same time to see what fault codes are cropping up.

    A prime suspect for this behaviour would be what’s called the engine’s stepper motor which is a small electric motor that controls the throttle body and, therefore, the car’s idle speed. If this motor is maladjusted or faulty, it could cause the engine to either idle roughly, too slowly, or stall altogether. But have the scan done before rushing out to spend money on parts that may or may not be the problem.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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