hey guys new into the audi world, always loved the audis ever since i owned a r32 vw and a gti, now i own a 1998 audi a4 v6 quattro wagon, i have a missfire on 3 cylinders all on the right side, the misfire goes right away after 1,000rpms driving it its fine, but after 5mins of warming up it has the missfire, the rpms dont jump, but you can hear it through the exghaust and see the motor rock a lil bit, but barely , another thing, is if the car is cold its fine, but let it run for 5 mins it will accur, it doesnt over heat, reads good oil temp and steady engine temp, changed coil pack and plugs, ...............doesnt backfire nor does it sound like a subaru on full acceleration.it doesnt even missfire if you keep the pedal above 1,000 steady..........i know theres somewhere on here whos a boss for the audis, someone give me some help, 22yrs old and i got the car ive always wanted with tons planned for it.

 

was it doing this before you replaced the coil?

and which brand coil did you use?

 

yes. first startin up from being cold nothing, warm up for 5mins misfires, step on the gas a tad to about 1,000 and a tad bit up it goes right away. driving it steady at any speeds its fine, replaced the coil with a stock original coil, also got new plugs, same concept still. i could go start it right now and it would run fine for about 5 mins but once it warms up it starts, steppin on the gas it doesnt sound like a subaru, it sounds fine.

 

so no wires were done?

what brand was the coil though?

 

not sure off the top of my head, just the original name they put on them, got the coil from a audi dealership. no wires were done. but id think if the wires were bad. it wouldnt go away after, 1000rpms or be fine when its first started and start missin once it warms up..and it would sound like a subaru if reved up.................unless audis are different or what not.

 

id start checking the injector harness and noid test all of them. also check for any un-metered air leaks near the mass air flow sensor.

a good cleaning of the MAF wouldnt hurt either.

 

im going to go out and check it out and see whats come about it. hopefully. somethng good may accur. injector 2 was replaced fyi