Welcome to the North American Subaru Impreza Owners Club Monday September 24, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Newbies & FAQs

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.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 06-22-2018, 03:38 AM   #1
RobbPHS
Scooby Newbie
 
Member#: 487489
Join Date: Jun 2018
Exclamation 2004 Impreza WRX RPM Fluctuates

Need some pointers on my current problem. I just had an upgrade on my Fuel Pump by using Walbro 255lph and SARD Fuel pressure regulator rate to 2.8kPa(I guess) and on a stock WRX TD04 turbo and Stock Injectors, weather here is quite hot in asia 30deg celcius to 34deg celcius.

After I made these upgrades, my RPM fluctuates rapidly where it goes from 1.7k> to at least 2.5k<. First it goes on after first startup of my upgrades, then it goes away and now it comes back again after I haven't been driving the car for 5 days. what could be the problem?

My coming upgrades are RHF5 VF38 turbo (twin scroll), STi pink injectors 565cc. but running on OEM ECU, was thinking to change to aftermarket but also need some pointers what are the pro's and con's.

Here with two questions

Cheers,
RobbPHS
* Registered users of the site do not see these ads.
RobbPHS is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 06-27-2018, 05:36 PM   #2
Mynards
Scooby Newbie
 
Member#: 487676
Join Date: Jun 2018
Default

Not to sure.......but did you say you did a fp on a stock everything? Just a guess "no sarcasm" but think your ecu is compensating.
Mynards is offline   Reply With Quote
Old 06-28-2018, 12:09 PM   #3
fleezy
Scooby Newbie
 
Member#: 436768
Join Date: Dec 2015
Chapter/Region: E. Canada
Location: Toronto
Vehicle:
2004 WRX
Silver

Default

you need a tune brother man.
fleezy is offline   Reply With Quote
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 01:35 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.