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Discussion Starter #1
Hi -

Intermittent CEL on a 2015 S80 2.0 Drive-e PZEV w/31K miles.

OBDII code P0171

So far:
1. Replaced MAF
2. Dealer smoke tested and replaced Breather Box/Oil Trap

Light off for a few miles, now on for 1.5 weeks. It turned off for about 20 miles out of the last 300 miles.

Anyone else have difficulty with CEL diagnosis on the 2.0 Drive-E?

Would appreciate ANY recommendations or conversation on similar experiences.


Thanks
 

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i agree with Tech, front 02 sensor.
Bank 1 Sensor 1, closet one the the turbo.
Also have the dealer do these 2 things, Battery reset and also go in with VIDA do an ECM adaptation reset.
I can not remember the exact name of the ECM reset to do with out looking at VIDA.
Your dealer techs should know where to look to perform this reset.
 

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Discussion Starter #4
i agree with Tech, front 02 sensor.
Bank 1 Sensor 1, closet one the the turbo.
Also have the dealer do these 2 things, Battery reset and also go in with VIDA do an ECM adaptation reset.
I can not remember the exact name of the ECM reset to do with out looking at VIDA.
Your dealer techs should know where to look to perform this reset.
Thanks. I appreciate how y'all know more than the dealer. It feels like they're going by process of elimination which is costly.

Just one question, what is an ECM adaptation reset? I need so be super specific with these folks.

THANK YOU. This has been maddening for weeks and your feedback give me some hope:bow:
 
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