Question about 1998 Audi A4

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1998 Audi multiple misfire engine code replaced plugs improved some what but the problem virtually dissapears in the cool morning but above 90 is signifigantly noticleble one boot appears brown other than that nothing noticeable wondrering where to start?

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  • reed-wood Sep 18, 2008

    Spark was an isssue but when igot the scanner past all the pack it narrowed it down to the number one fuel injector thanks for your help I posted some issues Im having with pulling the injector if you got any advise Id apprecieate it man I know my way with a wrench but until this audi it was all ford trucks I owned This german stuffs a little different


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Multiple misfire codes tend to indicate a problem with the coil packs - it's a fairly common problem with the A4, moreso on the 1.8T than the 2.8 V6, but failing coil packs are never a surprise on an A4.

Posted on Aug 28, 2008

  • Jeremy Dellow
    Jeremy Dellow Sep 19, 2008

    Heheh, yeah the German cars are different, but I really like them a lot (I had a Nissan 300ZX before my A4). The biggest benefit to them is that they seem to be designed with servicing in mind - most things come apart relatively logically and easily. I'll check your other post and see what I can do for you there.


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P0300 is a multiple misfire code. Meaning the PCM has detected a misfire on several if not all the cylinders.

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Crankshaft sensor Was the trouble with my 99 Chevy truck after replacing many components like coil cap rotor wires and so on . Code P0300 Causes and Fixes Code p0300 is a code that is generated when your engine has a misfire that is not related to only one cylinder. Sometimes this code will be set in addition to other codes such as p0301 which means that there is a misfire on cylinder 1 (cylinder 1 is the number one cylinder when looking at the firing order. It is generally the forward most cylinder on the engine.). If these engine codes are present as well the you should diagnose those first as they are probably causing code p0300.
This code will set your check engine light and needs to be fixed as soon as possible. If it is not then you will probably need to replace your catalytic converter as well as the problem that is causing your misfire.
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