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I am trying to find out which wire needs to be removed from the ECM to get rid of code C46 and the FI light with aftermarket exhaust on a 2008 C109R. I know this has been posted many times over but, everything I'm seeing is for the ECM wiring and pin placement for the M109's. Some say pin #4 some pin #7, black wire with brown trace. On the 2008 C109 there is only one wire with a brown trace but it is on the black ECM plug ( removing it does not cure C46 by the way). There are no wires present in the #4 or 7 position on the gray plug, just the factory white plugs where there are no wires.
 

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If i get a chance i will pull up the schematics later
 

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Here, this may help... I happened to have everything out...

it's the 7th pin on the gray plug, but it is pin #62 on the ECM.







Sorry, there is a cable in front of the hole. but it's the 7th from the top-right in all three pics.


 

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Here, this may help... I happened to have everything out...

it's the 7th pin on the gray plug, but it is pin #62 on the ECM.







Sorry, there is a cable in front of the hole. but it's the 7th from the top-right in all three pics.


Please! Is there any pics to show?
 
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