Multiple CEL codes, need a hand folks!
Not sure if this is an O2 sensor though. Everytime I had a faulty sensor the car would idle and ride a little rough but was never undriveable. This reminds me of HHughes's thread about misfiring and throwing codes. His problem was solved by changing plugs if I remember correctly.
http://www.autohausaz.com/search/pro...rtnumber=17016
I bought one from them. Works great.
The next issue had similar codes regarding misfires on cylinders 1,3 and 4. Ended up being the upstream O2 sensor but the plugs on that side were fouled beyond salvage as well.
I would switch the left and right sensors as others have said and see what happens. If the misfires remain on the passenger bank, you have a cam or crank sensor issue or the cam positioning has to be re- taught. If the problem follows the 02 sensor then you know what to do. If you use race gas frequently this is more likely. Don't be surprised if the problem goes away for a while after making the switch but comes back a few days later.
Good Luck with the resolution and relax cause it's not any major malfunction.
If I can have someone give me a clue on where this sensor is located that would be awesome.
The Best of Mercedes & AMG
The next issue had similar codes regarding misfires on cylinders 1,3 and 4. Ended up being the upstream O2 sensor but the plugs on that side were fouled beyond salvage as well.
I would switch the left and right sensors as others have said and see what happens. If the misfires remain on the passenger bank, you have a cam or crank sensor issue or the cam positioning has to be re- taught. If the problem follows the 02 sensor then you know what to do. If you use race gas frequently this is more likely. Don't be surprised if the problem goes away for a while after making the switch but comes back a few days later.
Good Luck with the resolution and relax cause it's not any major malfunction.
If I can have someone give me a clue on where this sensor is located that would be awesome.
edit: In case the above is not clear the CPS is externally mounted and is reading the speed from behind the crank pulley.
Last edited by bhamg; Mar 7, 2012 at 11:46 PM.
Did you guys manage to figure out the issue for the car? My car is having the same problem as well. https://mbworld.org/forums/c63-amg-w...ight-help.html
As far is the last CEL, it was a simple fix, just like someone anticipated, it was the cam position sensor that had to "learn all positions".
I am driving a CLS 550 now.



^^^

