VegasEcoboost
Member
- Thread starter
- #1
I’ve got a fun new issue with my 2015 EBM. At WOT my AFR is dipping down into the low 9’s. Doesn’t matter if the car is hot or cold. It’s totally stock down to the paper air filter. Obviously this is causing a severe loss of power and fuel economy. My car is equipped with the manual trans, and only ever gets filled with “top tier” 91 octane premium. I’ve tried searching the forum but mostly find posts related to older v8 cars. Any help would be greatly appreciated!
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