Experienced Haltech but New to UpRev

serturbo

Yeah, i wasn't planning on tuning with it. I was just wondering why I was getting funky readings. After all, the numbers I can get with my DashDyno are the same numbers Cipher is logging for UpRev's e-tunes.

Megan370z

thats because both programs are using the same sensor

serturbo

I didn't make myself clear. I'm thinking that my AFRs at WOT are wrong, so that means UpRev would be using this bad data to do a custom e-tune for me if I bought Osiris. Assuming my car is running correctly and not actually at AFR=17+ (as indicated by the OBDII port) at WOT, UpRev would increase the amount of fuel at WOT to help get AFR as indicated by OBDII data to a safer 12.5. Wouldn't this make the car super rich?

Unclemeaty

I would think that if the ECu sees 17:1 at WOT it would probably throw a check engine light for not being able to hit the targets by ~5 points. What device are you seeing the 17:1 AFR through again? Are you seeing 17 in the UpRev datalogs?

If your WB sensor isnt working right then it would likely be imposible for anybody to give you a good E-Tune.

I think your setup is bad. Also, UpRev would not likely tune against your external sensor unless you ask them to. They'd tune based on what the Cipher datalogs show.