Question about 1999 Audi A6

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STILL MISFIRING!!!!! 99 Audi A6 Avant

I changed the ignition coil pack, put in new plugs twice and wires, and still getting misfires. Changed the plugs twice becuase the first time I put in Bosch platinum and there were misfires, so I put in OEM NGK plugs (resistor). The car accelerates smoooth at first then begins to misfire after a short distance. At idle I have no misfires nor rough idling, no matter how long I let it idle. Exhaust odor is strong/heavy. Thinking of doing the cam position sensors next?

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  • dave517 May 20, 2009

    Strong odor upon morning starts. Accelerates fine. Misfires during regular travel (engine shutoff once or twice within the month whiles driving) 2001 A6 2.7L

  • dave517 May 20, 2009

    2001 Audi A6



    strong smell when starting in the morning

    Misfires

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AUDI A6 Recalls by Year

http://www.allworldauto.com/recalls/audi_a6_recalls_65-2089-1.html


Posted on Sep 22, 2009

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Hello before you replace parts you might not need try to test the map sensor see if it is within range this works with vacuum changes in motor goodluck please rate

Posted on Oct 03, 2008

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Po316 y po303 en Ford tAurud 2003


Cylinder # 3 has a misfire...#1) Defective coil on plug or the spark plug itself...#2) Contaminated fuel injector...See drawings below...The coil pack is the smaller of the two and sits to the rear of engine it is the most probable cause...Although the spark plug or the ignition wire (connection between plug and coil pack) could be at fault...so, before you invest in a new coil pack...Remove from both ends the wire from #3 and switch it with #2...if the fault code changes to p0302 that wire is bad...next Install a new set of plugs....Fault still present? replace the coil pack.....Unless recently changed new plugs and wires are a plus even if fault remains...saailer


25648931-vzzc52ao251lv4b5zemk330u-5-0.gif

25648931-vzzc52ao251lv4b5zemk330u-5-1.jpg
Cost= about $90

Apr 15, 2015 | 2003 Ford Taurus

1 Answer

Initial start up the engine sounds like its running on 2 cylinders under powered intil the temp gauge reads normal ???? any body got the answer please


Cold starting misfires can often be caused by either tired high tension spark plug leads or ignition coil packs. If replacing leads, then replace with a full, new set. Coils can be changed individually, but it is often the case that if one has failed, then the others aren't far behind. Some cars have individual coil packs on each spark plug. Some cars have a single pack for all plugs and some have coil packs which may control two or more plugs.

To check for a misfire (ignition failure) follow these steps:

(Cold start) (Use a pair of insulated pliers)

1) Start the vehicle

2) When the vehicle starts misfiring, disconnect plug leads or coil pack connections one at a time. If the vehicle idles even more roughly, then that plug or pack should be considered fine.
Replug each connection before disconnecting the next one. Once you disconnect a plug lead or coil pack connection and find no difference in poor engine running, then you have likely found the offending cylinder. Check the spark plug condition, lead and/or coil condition and connections on that cylinder.

3) Replace components as necessary.

Oct 12, 2014 | Cars & Trucks

1 Answer

2002 toyota tacoma v6 4x4. I had a multipel misfire code and a misfire code on cyl 3&6. I changed the plugs and ignition coil for cyl 3&6. cleared the codes but still having problems with...


I was having the same problem changed plugs, plug wires, coil packs, cat converter and had injectors flushed....cost quite a bit and nothing fixed the problem. Over 1000.00 spent before changing the injectors and this fixed the problem perfect. My truck now runs like new and I hope to get another 185,000 miles out of it......have the injectors checked and use "seafoam"....good luck

Feb 11, 2011 | 2002 Toyota Tacoma

1 Answer

Autozone says it's #4 not firing and to put some gas treatment in. and new plugs and wires. still misfiring.


Check ignition coil pack for spark, at ignition coil with engine running disconnect one spark plug wire at a time, they should all spark, if no spark out of any of the coil pack, replace coil pack.

Nov 09, 2010 | 2001 Hyundai Tiburon

1 Answer

There is a misfire in my engine, changed plugs & wires. now it reads that the fuel leveling sensor is bad, will this help?


If there is a misfire, the cylinder that it is misfiring in will be recorded as a code in the computer.

Have the car scanned to determine which cylinder is bad. Then, replace the coil pack going to that cylinder.

Ignition Coil Pack Removal & Installation 2V Engine To Remove:
  1. Twist the spark plug wires off of the ignition coil towers. Mark the spark plug wire positions so they can be installed in their original positions.
  2. Disconnect the electrical connector from the ignition coil. CAUTION
    When removing the spark plug wires, a slight twisting motion will break the seal and ease removal.
    coilconn.gif

  3. Remove the mounting screws and remove the ignition coil.
To Install:
  1. Position the ignition coil pack on engine.
  2. Install mounting screws and torque to 53 in-lbs. (6 Nm). coilbolt.gif

  3. Connect ignition coil pack electrical connector.
  4. Match previously marked spark plug wires to ignition coil and install.
4V Engine To Remove:
  1. Remove the RH cowl grille cowlpic.gif
  2. Remove the screws and the water shield
  3. Mark spark plug wire positions
  4. Disconnect the spark plug wires from the ignition coil CAUTION
    When removing the spark plug wires a slight twisting motion will break the seal and ease removal.
  5. Disconnect the ignition coil electrical connector coilconn.gif

  6. Remove the mounting screws and remove the ignition coil
To Install:
  1. Position ignition coil pack. Install mounting screws and torque to 56 in-lbs. (6Nm)
    coilbolt.gif

  2. Connect ignition coil pack electrical connector
  3. Match previously marked spark plug wires to ignition coil and install
  4. Position water shield and install screws
  5. Install RH cowl panel
prev.gif next.gif

Aug 11, 2010 | 2002 Ford Taurus

1 Answer

2005 Cavalier misfiring on 2 cylinders, dumping fuel


Spark plugs get there voltage from the ignition coil packs, more then likely you have a bad coil pack or coil pack boot, pull one coil pack or spark plug wire or boot at a time, if you see a drop in rpm, that one is good, if no drop bad coil pack.

Jul 19, 2010 | Chevrolet Cavalier Cars & Trucks

1 Answer

Check engine light flashes sometimes and runs rough


A flashing check engine light is a critical indicator. That usually means that something went wrong that will damage the emission control system... and that is usually an ignition issue. First off, the OEM plug your car calls for is an NGK irridium... NOT BOSCH and not anything with more than 1 prong. Those NGKs are like 2 bucks and they are the proper plug. Make sure you have these plugs and make sure they are gapped to .028. Next, my suggestion is put all the new stuff on again. Drive it to autozone and have them delete all the codes. Drive it around until the check engine light comes on again, then immediately go back and read the codes. The ECU is smart enough to know which cylinder is misfiring. On these cars, I think they have three banks of two... meaning one "coil" inside the coil pack operates two of the cylinders. So if you get multiple misfires, it's the coil. If you get one misfire it's probably an individual plug wire or plug. Good luck.

Jul 15, 2009 | 2001 Volkswagen Passat

2 Answers

Daewoo lanos 2000 car is misfiring and wont run properly firing on cylinders 1 and 4 misfiring


have you changed the ignition wires? perhaps firing order crossed? if not coil pack or ignition wires faulty how do you know it is not "FIREING" on 1 & 4 have you tested it with a spark tester tool???

Dec 23, 2008 | 2000 Daewoo Lanos

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