Welcome to the North American Subaru Impreza Owners Club Wednesday May 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

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. 
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 11-25-2010, 07:35 PM   #1
DrBelmore
Scooby Newbie
 
Member#: 254057
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: Milwaukee, WI
Vehicle:
2002 WRX

Default Car wont boost over 10psi

Hi I have a 02 bugeye hybrid with vf39, grimmspeed ebcs, and all supporting mods. I have been boosting 19psi at 11.4:1 AFR with no problems. Then all of a sudden one day I was getting on the freeway and I hit on it and it stuttered for a second and then kept going (19psi). Well I get off the freeway and boosted it in first, right when the boost was getting over 10psi the pressure started going all crazy like 13psi, 17, 15, 18, 14, 19. And my AFR's went down to 10:1. Also the motor started stuttering and was kind of shaking (and it was back firing from going so rich). Then I let off and the car drove fine as long as I dont go over 10psi. I tried the same thing in second gear and it did the same exact thing. I did a 20psi boost leak test and heard no leaks. I took off the TMIC tightened all the clamps, checked all the couplers/gaskets and found nothing.

What do you guys think it could be?

Thanks
Eric

Last edited by DrBelmore; 12-03-2010 at 04:48 PM.
DrBelmore is offline   Reply With Quote
 

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
WRX 2.0 wont boost over 4lbs TPPERFORMANCE Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 18 07-02-2010 12:47 PM
Car wont rev over 5000 RPM, pulled Map sensor and cars fine.... Please help!!! Cautionjump Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 3 06-08-2007 11:45 PM
wont boost over 5psi v8eaterWRX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 8 12-25-2006 06:06 PM
wont boost past 10psi mtxfrk2k1 Normally Aspirated with bolt-on Forced Induction Powertrain 10 04-02-2006 04:01 AM
HELP!Car wont get over 3800 rpm? 4CEFED6 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 27 08-19-2002 10:23 AM

All times are GMT -4. The time now is 04:53 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.