Mercedes-Benz Forum banner

1 - 5 of 5 Posts

·
Registered
CLK 55, 2004
Joined
·
94 Posts
Discussion Starter · #1 ·
Hi , So I just got 3 codes today

P0170 fuel trim malfunction

Pending:
p0133 witch indicates 02 sensor
p0153 witch also indicates 02 sensor

How do I know witch ones of the 4 sensors are not working?

What can I do about the p0170 and could it be the cause of the other 2 codes?

thank you
 
G

·
Hi , So I just got 3 codes today

P0170 fuel trim malfunction

Pending:
p0133 witch indicates 02 sensor
p0153 witch also indicates 02 sensor

How do I know witch ones of the 4 sensors are not working?

What can I do about the p0170 and could it be the cause of the other 2 codes?

thank you

You pulled the codes and your scanner should tell you which 02 sensor and which side. It should also say Bank 1 or Bank 2 and 02 sensor 1 or 02 sensor 2. I got a check engine light last weekend on my Clk 430. It showed 5 codes when I scanned it. Misfired on bank 1 & 2. Fuel trim malfunction bank 1 & 2. 02 sensors malfuction bank 1 & 2. Since everything is messed up on both side of the cylinders, I concluded that it can only be one problem that cause all the other problems. Sure enough, I cleaned the MAS/MAF and the code haven't return yet.
 

·
Registered
CLK 55, 2004
Joined
·
94 Posts
Discussion Starter · #5 ·
bank one indicates left of right catalitic converter? sensor one is it after or before the catalitic converter?
 
1 - 5 of 5 Posts
Top