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Hello everyone! Since I'm from Russia, sorry for my English. I have a problem with the AFR after installing Apexi Power FC (GT-T) on my Stagea 34 (RB25DET NEO). At idle AFR 13,2, in boost too rich AFR,> 10-11 .. On the standard ECU are no such problems at idle 14,7, boost 11-12. PFC installation was performed correctly .. ETC, DATA INIT, YES .. 30 minutes at idle (10 min + 10 min A / C and 10 min demister)
Of tuning only exhaust, air filter and intercooler .. Engine standard. I thought that PFC fuel map similar to that in a standard ECU map..

Thanks!

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You need to tune it no matter what.

Take it to a tuner, and have the map fixed up.

Two of my friends have the same engines and the same PFC. Before they tuned in to the AFR everything was fine, at idle AFR = 14,7, as well as with the standard ECU.

The translator is doing a good job. It was completely my fault.

At idle it should run closed loop and run around 14.7 when the car is at temperature if the O2 sensor is working on both a stock ECU and PFC. Have you changed anything else after swapping ECU's?

The translator is doing a good job. It was completely my fault.

At idle it should run closed loop and run around 14.7 when the car is at temperature if the O2 sensor is working on both a stock ECU and PFC. Have you changed anything else after swapping ECU's?

Of the changes that I saw only AFR.. As on stock ECU's all right, I decided to return it and look for the information about the problem..

  • 2 weeks later...

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