3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

The Dreaded Boost problems.....

Thread Tools
 
Search this Thread
 
Old Dec 7, 2004 | 06:19 PM
  #1  
hmltnangel's Avatar
Thread Starter
Junior Member
Tenured Member 10 Years
 
Joined: Nov 2004
Posts: 17
Likes: 0
From: Livingston
The Dreaded Boost problems.....

Hiya,

Just finished doing a vac hose replacement.....

managed it ok - took a while but i got there in the end.

Only snag is I still have a boost problem!

Boost pattern goes

0.65kg (9.2psi)


0.5kg (7.1psi)

then it holds the 0.5kg all the way to redline.

Any suggesions on what specifically could be?

In hind sight the only things I can think of that I might have done was

1. the 2 restrictor pills in the hoses to the turbos didn't fit as snug into my new hoses as well as they did in the old ones. Could this be a cause of the low boost?

2. Under the intake plenum there's a turbo control solenoid.... with an adjustment wheel on it (very distinctive as it has a mitsubishi symbol on the adjusting ****) and I may have turned this.

Anything else I should check?

What has everyone ekse found to be wrong in these instances?
Reply
Old Dec 7, 2004 | 06:59 PM
  #2  
dgeesaman's Avatar
Moderator
Tenured Member: 20 Years
Liked
Loved
iTrader: (8)
 
Joined: May 2002
Posts: 12,313
Likes: 27
From: Hershey PA
Your secondary is not coming online.

Try these 2 links:

http://www.autosportracetech.com/RX-...leshooting.htm

http://www.scuderiaciriani.com/rx7/boost_problems.html - follow the procedures by Steve Wynveen (Sat 5 Sept 1999) and Wael El-Dasher (Sun, 12 Dec 1999). They're about halfway down the page.
Reply
Old Dec 7, 2004 | 11:48 PM
  #3  
jeremyb's Avatar
Hi....
Tenured Member 15 Years
 
Joined: Mar 2004
Posts: 845
Likes: 0
From: bay area
^^^ ditto
Reply
Old Dec 8, 2004 | 12:25 AM
  #4  
RX7Wishing's Avatar
BOOOYAHHHH!
Tenured Member 05 Years
 
Joined: Feb 2004
Posts: 1,578
Likes: 1
From: Virginia Beach
also. check your check valves. make sure they are pointing in the right direction
Reply
Old Dec 8, 2004 | 07:31 AM
  #5  
Klar's Avatar
VVThat's meVV
Tenured Member 10 Years
 
Joined: Oct 2003
Posts: 610
Likes: 0
From: Austin, TX
Swap your two plugs for the silenodes in front of your UIM. The ones that sit side by side. When I did my hose job I got these backwards and it cause the same boost pattern.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Shainiac
Single Turbo RX-7's
12
Jul 17, 2019 02:20 PM
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM
Bauer778
3rd Generation Specific (1993-2002)
10
Nov 4, 2015 04:42 PM
zxrazorxz
3rd Generation Specific (1993-2002)
2
Sep 14, 2015 07:21 PM
High_Carb_Diet
Power FC Forum
1
Sep 5, 2015 09:07 AM




All times are GMT -5. The time now is 07:54 AM.