Welcome to the North American Subaru Impreza Owners Club Friday January 27, 2023
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 11-21-2022, 03:37 PM   #1
CBlakley
Scooby Newbie
 
Member#: 532195
Join Date: Nov 2022
Default AFRs Bounce at high boost/rpm

I've been experiencing an issue with my car where the AFR is very unsteady once I get over 4.2v MAF reading. I do not believe this is tune based as we have tried everything we can in the tune to resolve this but it continues to do the same thing.

I have also done a smoke test to verify that there are no leaks.

Any ideas what this could be? potentially fuel delivery related? FPR issue maybe?

mods:
- COBB SF intake
- COBB Catted Downpipe
- ID 1000 Injectors
- COBB FPR
- AEM 340lph pump
- Turbosmart 40mm EWG
- PLM uppipe
- Grimspeed 3 port EBCS
- IAG v3 Competition AOS

image of the AFRs:
https://imgur.com/a/GRczMBp
* Registered users of the site do not see these ads.
CBlakley is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 04:01 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2023 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.