I have 2005 Audi A4. The check engine light on. I took it to Autozone and they said that 'Multiple Cylinder misfire' happened. They asked me to replace the filters and few wires (Not clear). Also asked if I got it tuned up recently. I said no. I got the 45K regular maintenance done recently but not sure if the tuneup is part of it. So, they suggested to get a full tuneup. Could anyone please recommend what to do. Also, please suggest if it is better to take to the dealer? Thanks in Advance.
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If the check engine light is on? Take it to your local parts store for a free diagnosis. Usually it needs a tune up,spark plugs, cap and rotor if applicable. I don't do audi very offend but this is a start. good luck!
It's not a cat problem or you'd have misfires on all cylinders. P0300 is random misfires, and the codes increment to show what cylinder is misfiring. P0301 is a misfire on cylinder 1, P0302 is cylinder 2, etc. You likely have a bad coilpack. Whichever cylinder is indicated, replace that coilpack.
I too have the same problem on my 2005 1.8t B6. I noticed a hole in the breather hose coming off the valve cover that runs to another port under the intake manifold. I have the hoses on order and should be here on Wednesday. I'll post again if that fixes my problem.
it is always a good idea to stay with o.e.m parts and yes there is updated parts in the newer coils. and yes the M.A.F will also cause misfire faults but will not make check engine light flash or make car shake and shudder. also check you wire harness going to your coils make sure your ground wires are not cracked. That could be the main culprate. good luck hope this helps
Nope, no check light is triggered by high RPM, unless you overrev and damage something. Go to AutoZone and have them do a code scan (a dealer will charge an hour's labor, but at AutoZone it's free). Post the codes as a reply here and we'll go from there.