Help Please!!!! 1998 Audi A6 Multiple Misfires?!
#1
02-04-2012, 01:25 PM
Help Please!!!! 1998 Audi A6 Multiple Misfires?!
I am a newly Audi owner. I am very proud to say that I own an Audi, but i am having some problems. I bought the car for a winter college car that would be comfortable since I am a tall guy.
On to the car problem. The CEL is on and it also blinks. I have read the codes and keep getting the following codes, P0300,P0301,P0302,P0303. I know that the codes are multiple misfires and on cylinders 1-3. I have replaced spark plugs, coil pack, and also put injection cleaner in. The day I put the injection cleaner in I ran it for about 100 miles and the light stayed off. The following day I had inspection and the light came back on, there for not passing. I am currently in need of any help because it is hard for me to travel back and fourth to college without an inspected car. The car runs amazing and its weird that it has this misfire. When I first turn it on the engine runs around 1100 rpm and then idles down to around 800 rpm then seems a little hesitant and sort of rough but not that bad. Any sort of help would be much appriciated. Thank you!
Please help!!!!
On to the car problem. The CEL is on and it also blinks. I have read the codes and keep getting the following codes, P0300,P0301,P0302,P0303. I know that the codes are multiple misfires and on cylinders 1-3. I have replaced spark plugs, coil pack, and also put injection cleaner in. The day I put the injection cleaner in I ran it for about 100 miles and the light stayed off. The following day I had inspection and the light came back on, there for not passing. I am currently in need of any help because it is hard for me to travel back and fourth to college without an inspected car. The car runs amazing and its weird that it has this misfire. When I first turn it on the engine runs around 1100 rpm and then idles down to around 800 rpm then seems a little hesitant and sort of rough but not that bad. Any sort of help would be much appriciated. Thank you!
Please help!!!!
#2
02-04-2012, 03:09 PM
What engine is in this car?
Since all of the misfires are on the same bank, I would look for things that the bank shares with all cylinders. Check your ignition coils, wires, etc. If your car had a power output stage, I'd lean towards that, but I think you just have ignition coils that connect to the plugs via wires. Actually - you say you replaced a coil pack - you have the 2.8L engine, right? Did you replace a coil pack, or the ignition coil?
The other item to check would be your cam position sensors, which are located on each cylinder head and look like this:
Audi C5 A6 Quattro V6 2.8L > Search > Hall > ES#1876 Hall Sender - 058905161B
They are heald onto the head with two bolts. Try swapping them, clearing your codes, and then see if the codes move to cylinders 4,5,6.
If that doesn't work, look for a vacuum leak.
If you have access to a Vag-Com, you may get more direction there...
Since all of the misfires are on the same bank, I would look for things that the bank shares with all cylinders. Check your ignition coils, wires, etc. If your car had a power output stage, I'd lean towards that, but I think you just have ignition coils that connect to the plugs via wires. Actually - you say you replaced a coil pack - you have the 2.8L engine, right? Did you replace a coil pack, or the ignition coil?
The other item to check would be your cam position sensors, which are located on each cylinder head and look like this:
Audi C5 A6 Quattro V6 2.8L > Search > Hall > ES#1876 Hall Sender - 058905161B
They are heald onto the head with two bolts. Try swapping them, clearing your codes, and then see if the codes move to cylinders 4,5,6.
If that doesn't work, look for a vacuum leak.
If you have access to a Vag-Com, you may get more direction there...
#3
02-04-2012, 10:52 PM
Help!! 1998 Audi A6 2.8 Quattro
It has the 2.8 5v engine. The coil pack is just a single pack with all the plugs running to it. I do not have a clue where the POS is or the cam position sensor is and how do i check to see if thats the problem. Thanks for the help.
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