Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!

Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more! (https://www.audiforum.ca/)

- 2.7l - Twin Turbo (https://www.audiforum.ca/2-7l-twin-turbo-92/)

- - Misfire codes, p0300 (https://www.audiforum.ca/2-7l-twin-turbo-92/misfire-codes-p0300-65284/)

B5S4TT

04-26-2011 11:59 PM

Misfire codes, p0300

I have a 2002 B5 S4, it is running really ruff. I had driven it all day and there was no problems. I had gone to an appt, started the car and it started misfiring. It is misfiring in cycl's 1,3,4 and 6 the code that it comes up with is P0300. Anyone know where I should start to look to fix this problem.

nothing77

04-28-2011 06:17 PM

Re: Misfire codes, p0300

Look at the throttle body boot, or for another major vacuum leak

dave07

03-02-2012 08:06 PM

Re: Misfire codes, p0300

I had the same codes with my 02 Allroad. seemed to get worse by the day. It started with the odd miss under acceleration and after a few days it started to miss while idling at stop light. It turned out to be old spark plugs with cracked ceramics. Try new plugs. $26 each for platinum $$ good luck !!

All times are GMT -5. The time now is 05:19 PM.