ok, so i start my car this morning, its idling at 1200 rpm, wont go above 3000 rpm, and wont go above 45 mph. i pulled 5 misfire codes, a p0300, which is random misfire, and one for each cylinder. im sort of new to the way audis are made, and i was wondering how some of you fixed it. i would figure that probable causes are the spark plugs, fuel injectors, or a timing belt.

Year, trans, and mileage, please.

When was your last service? Have you checked your spark plug gap? When was your fuel filter last replaced? Is your air filter filthy? Have you tried unplugging your MAF to see if the car runs better?

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01 A4 1.8T Quattro Sport
Eibach, Hotchkis, Upsolute, Borla

its a 2000 1.8 turbo with a 5 speed

-Have any of the coil packs been replaced?

-Do you have access to a VAGcom to check 02 sensor info, MAF readings, and fuel trims?

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01 A4 1.8T Quattro Sport
Eibach, Hotchkis, Upsolute, Borla

the only thing i got is a little mac et50 that tells me codes and if the monitors run, but i dont have the VAGcom. how much is it, and is it a program for your computer?