Engine problems after changing 02 sensors :-(
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Super Member
Joined: Feb 2008
Posts: 647
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From: The Land of Blondes...
2001: Supercharged E55 AMG
Engine problems after changing 02 sensors :-(
Here is the deal. After changing the two front (primary) 02 sensors my car havn't been the same 
After a lot of research i found out that i got the wrong 02 sensor on the right side.
After i installed them i started the car up and there where alot of white smoke coming from the exhaust. Just like a cloud and it disappeared after a few seconds.
Put it in drive mode and felt that the car started to shake and where really ruff at idle. And i decided to put the old 02 sensors back. Went to a MB workshop and they reset the adaption (i've also unplugged the battery). But the problems are still there and has gone worse and worse
Now the car sounds like it's on 6-7 cylinders and won't rev clean.
The only fault code at the MB work shop said Air Mass Sensor (Bad signal or no contact)
I've changed the Air Mass Sensor to without any luck.
Next thing i wonder is if it could be the Crank Position Sensor? But it seems undoubtful that it would break just after changing to a wrong 02 sensor???
Car has as you know the Kleemann S/C, and it could be the resistor box too, but again, shouldn't happen after changing 02 sensors.
Any thoughts???
After a lot of research i found out that i got the wrong 02 sensor on the right side. After i installed them i started the car up and there where alot of white smoke coming from the exhaust. Just like a cloud and it disappeared after a few seconds.
Put it in drive mode and felt that the car started to shake and where really ruff at idle. And i decided to put the old 02 sensors back. Went to a MB workshop and they reset the adaption (i've also unplugged the battery). But the problems are still there and has gone worse and worse
Now the car sounds like it's on 6-7 cylinders and won't rev clean.
The only fault code at the MB work shop said Air Mass Sensor (Bad signal or no contact)
I've changed the Air Mass Sensor to without any luck.
Next thing i wonder is if it could be the Crank Position Sensor? But it seems undoubtful that it would break just after changing to a wrong 02 sensor???
Car has as you know the Kleemann S/C, and it could be the resistor box too, but again, shouldn't happen after changing 02 sensors.
Any thoughts???
