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Thread: Rough idle when MAF sensor plugged in

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  1. Rough idle when MAF sensor plugged in 
    #1
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    Hello
    I've been having rough idle and I found that when MAF sensor is unplugged engine stops hesitate straight away.
    Sometimes I get flashing glowplug light when driving, same as when MAF sensor is unplugged (not a limp mode as turbine is still working). Problem is it didn't give me any codes.

    Firstly I'll clean MAF sensor and change air filter. If it won't help I'll buy new sensor.
    What are my other options if problem is still there? Does this MAF sensor wire harness interfere with something else?
    Audi A4 2.0tdi 170bhp
     
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  2. Re: Rough idle when MAF sensor plugged in 
    #2
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    First buy genuine maf and see if any better second scan car with Vcds
    eye for an eye means the whole world goes blind
     
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