Engine work like a "tractor" one
Thread Starter
Junior Member
Joined: Apr 2009
Posts: 59
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From: seattle, wa
07 E63
Engine work like a "tractor" one
Hello everybody,I have CEL on, the code is Po171, "vacuum leak" or O2 sensor?
I have read the posted threads, and did something on the car but.. no result.
Actually I did not change the O2 sensor (Bank1), but I check the MAF and clean it check and clean the cam sensor, clean the wires.
Have tried to start engine with and with out MAF no difference.
Do you think I shoud tried to change the O2, and if yes can somebody please point where is that, I have seen one on the passanger side on the exost pipe ander the hood.
The rpm is a little bit higer(around 1000)usually was 7-8 hundread(???) on parking.
The engine work noisy.
Power, probabily a less, a did not drive it, just a little bit in last time, this is my previos one, nw my girlfriend is driving.
Will aprecciate any help and sugsetions
by the way: engine M111, C230K Coupe 2002
Thank you
