Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza Technical Area > Technical General

Subaru Impreza Forum

headers, gas consumption
Reply
 
LinkBack Thread Tools Display Modes
Old 25 Jan 2007, 09:58 PM   #1 (permalink)
Fresh Scooby
 
Join Date: Jul 2005
Posts: 4
headers, gas consumption

I have an 02 WRX wgn (sans bug-eye, i have Morette's now) and ive recently added headers and an up-pipe and wow that was a decent amount of work. everything is back together and running good except for one major concern, my fuel consumption has increased significantly. the new up-pipe has bungs which i installed the O2 sensor and what i believe is a temp sensor but obviously im running without a cat in the up-pipe. i have a dual dump downpipe that deleted the other cat and i still have the third cat and the final O2 sensor. im not getting a check engine light but i was told by one Subie nut that i could possibly still be throwing a code without tripping the check engine light. is that possible? and what is the dilemma with my fuel consumption? any help would be great.

My other concern is when i get into the throttle im hearing a relatively loud hissing/whishing noise from the passenger side of of the firewall (the turbo). is this just noise from the wastegate opening sooner and farther due to faster spool up and i need to get use to it since i deleted the cat or is this related to my first problem?

thanks jim
Offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Greater fuel consumption Subaru WRX 2002 Spirit Technical General 6 02 Feb 2008 09:30 AM
Headers Question......... The Pilot Technical General 6 11 Oct 2006 09:59 AM
Tips on Fuel Consumption. dieard Subaru Impreza Discussions 4 14 Aug 2006 06:29 PM
Tubular headers - Are they worth it? Turbosocks Engine Bay 5 03 May 2005 09:27 PM


All times are GMT. The time now is 09:10 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.