02SilverSiHB
Senior Member
- First Name
- Mike
- Joined
- Jan 3, 2018
- Threads
- 53
- Messages
- 2,676
- Reaction score
- 1,678
- Location
- Annapolis, MD
- Vehicle(s)
- 2019 FK8
- Vehicle Showcase
- 1
I have the logs and compared them to logs of my car without the bov and there was nothing different. It wasn’t running richI'm sorry, but it is. The datalogs don't have super high resolution and can easily miss the split second that the BOV causes the engine to go rich.
It's a really basic concept that doesn't even merit debate or need datalogs to prove/disprove. The ECU measures air at the intake. The BOV lets air out after the intake and before the cylinders. The ECU, not knowing any better, injects the amount of fuel into the cylinders that would match with the amount of air at the intake. You have now introduced richness, which the ECU will rapidly attempt to correct for, even potentially causing a lean scenario with how badly this ECU controls feedback.
Know that I'm not here to tell you you're wrong and your part is bad or you're dumb for running it or anything like that. Feel free to run the part all day, feel free to tell others to run it because it sounds awesome. But the fact of the matter is, by definition, this thing makes the air fuel ratio go rich. The long term effects of this are unknown and there are no short term effects, but it's still one way or the other, no matter how you slice or dice it, messing with the airflow metering on a MAF-tuned ECU that needs perfect airflow metering more than any other MAF-tuned ECU.
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