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

Yet another BOOST PROBLEM POST

Thread Tools
 
Search this Thread
 
Old Aug 21, 2007 | 02:14 PM
  #1  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Yet another BOOST PROBLEM POST

Ok
This is my situation
1st can only get boost up to 5-6psi
2nd can only get boost up to 5-6psi
3rd can get full 10-12psi
4th can get full 10-12psi
5th can get full 10-12psi

Now with that problem listed above, can this be narrowed down to something specific?
Reply
Old Aug 21, 2007 | 02:27 PM
  #2  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
Most likely, the Turbo Control Actuator and its associated solenoids.
Reply
Old Aug 21, 2007 | 02:40 PM
  #3  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by Mahjik
Most likely, the Turbo Control Actuator and its associated solenoids.
wHERe can i get a diagram or how to fix this particular item?
Reply
Old Aug 21, 2007 | 02:45 PM
  #4  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
Arrow

Some testing/troubleshooting steps in this thread:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/turbo-problem-first-second-gear-only-tho-677318/
Reply
Old Aug 21, 2007 | 03:28 PM
  #5  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by Mahjik
Most likely, the Turbo Control Actuator and its associated solenoids.
Could you please point out the area of the turbo system where I can find the Turbo Control Actuator and its assosiated solenoids? diagram attached
Attached Thumbnails Yet another BOOST PROBLEM POST-turbochargerbig.jpg  
Reply
Old Aug 21, 2007 | 03:35 PM
  #6  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
Arrow

The components are on the bottom of that picture labeled "Turbo Control". The solenoids are located under the UIM, one bolted to the ACV and the other on the solenoid rack. You can see there locations using the vacuum diagram:

http://www.fd3s.net/vacuum_hose_replacement.html
Reply
Old Aug 21, 2007 | 04:02 PM
  #7  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by Mahjik
The components are on the bottom of that picture labeled "Turbo Control". The solenoids are located under the UIM, one bolted to the ACV and the other on the solenoid rack. You can see there locations using the vacuum diagram:

http://www.fd3s.net/vacuum_hose_replacement.html
Ok thanks alot for the direction...
but what am I looking for exactly? Like something out of place?
Reply
Old Aug 21, 2007 | 04:04 PM
  #8  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by Mahjik
The components are on the bottom of that picture labeled "Turbo Control". The solenoids are located under the UIM, one bolted to the ACV and the other on the solenoid rack. You can see there locations using the vacuum diagram:

http://www.fd3s.net/vacuum_hose_replacement.html
do i have to remove the turbos to inspect these?
Reply
Old Aug 21, 2007 | 04:10 PM
  #9  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
You don't need to remove the turbos for these checks. Start with the KOKO test described here:

http://www.fd3s.net/boost_test.html

That will at least let you know if the mechanism is working properly. If its not, then you need to test each component individually to see which one may be faulty.
Reply
Old Aug 21, 2007 | 05:30 PM
  #10  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by Mahjik
You don't need to remove the turbos for these checks. Start with the KOKO test described here:

http://www.fd3s.net/boost_test.html

That will at least let you know if the mechanism is working properly. If its not, then you need to test each component individually to see which one may be faulty.
Check engine light codes.. got Long flash followed by six short ones.. Im assuming this translates to engine code 16....
Looked at this website couldnt find any code for 16..??

Ok seems like this is the EGR vavlve that is causing problem.
Is the EGR valve necessary to keep in the car?>
Reply
Old Aug 21, 2007 | 05:54 PM
  #11  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Ok as far as engine light codes i got 17 as well as 16...
17 Feedback system for O2 sensor where is this located on the car? and can this be fixed/disabled too?
Reply
Old Aug 22, 2007 | 12:00 AM
  #12  
FD3S2005's Avatar
SideWayZ The Only Way
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Jun 2005
Posts: 4,945
Likes: 32
From: Davie, Florida
i have the same problem.. some one told me that the turbos going bad... but i believe its the thing mahjik
Reply
Old Aug 22, 2007 | 12:32 AM
  #13  
Thread Starter
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Jul 2003
Posts: 823
Likes: 0
From: Toronto
Originally Posted by FD3S2005
i have the same problem.. some one told me that the turbos going bad... but i believe its the thing mahjik
so my primary turbo is going bad?
My secondary seems to run fine.. get 10-12 psi out of that baby 3rd gear to 5th...
Reply
Old Aug 23, 2007 | 09:42 PM
  #14  
FD3S2005's Avatar
SideWayZ The Only Way
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Jun 2005
Posts: 4,945
Likes: 32
From: Davie, Florida
no my primary is good my secondary seem to not want to boost 100% in first second and third but in third it clears up at higher rpms
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Queppa
New Member RX-7 Technical
11
Nov 18, 2024 03:47 AM
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM




All times are GMT -5. The time now is 04:44 AM.