AFR Problem

[LeChatMSP]

I have a nasty problem and I am looking for a long time ...
Quick Overview

I have a SSAFC, hard piping + upgrade simc, exaust updrade line with hi-flow cat. I reset my SSAFC to differant map but not big change

I have a wicked problem of AFR in WOT, my wideband walks between 7.7 and 9 to 5psi. So not big deal in acceleration but no Fuel cut

I am a court or idea to know if you have any suggestions I would be happy.

Sorry for my bad english, I'M from Quebec Canada

Thanks for your help

 

[hornsfan10609]

Reload the super stock map to the AFC. Any CELs? You may have an injector stuck open or just the wrong tune on the AFC. The cells in the fuel table should all be 10 or just under 10.

 

[LeChatMSP]

Thanks for your reply,

I reload the supersotck map, that help but not perfect. When you talk about the Cells table, is it in the superstock map data or by default?

 

[Birdman_7]

You can use Microsoft Access if you have it to open the supermap as an .mdb file. Then you can open the tables and view them to make sure your afr is 10. Once you hit boost, it goes down, but it shouldn't by much. I'm still pretty new to this but 7.7 seems really rich...

 

[hornsfan10609]

You want your AFRs to be around 11.5 for a conservative tune and 12-12.5 for an aggressive tune. The cells in the Fuel Map A in the R4 software should be set to 10 in vacuum and near 10 or just below when in boost. Did the car run fine after installing the AFC?