93 rx7 wont boost past 5 lbs
#26
Full Member
Thread Starter
Join Date: Mar 2007
Location: chicago
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
I changed 3 out of the 4 check valves today and swapped out the charge relief valve and the bov with used ones also. I still have the same problem. i changed the 3 check valves that are by the pressure tank. the one under the uim I didn't change I was told that it would not cause boost problems. And I had a venting hose to the crv that was cracked I got a new one. Any Ideas on what else I should check?
#30
Full Member
Thread Starter
Join Date: Mar 2007
Location: chicago
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
well pretty much if i hit 5 lbs or higher boost it falls on its face. and if i keep it at under 5 lbs boost like at around 3 or 4 it will go fine until i am around 3 rpms it will start hessitating pretty bad.
#31
Mr. Links
iTrader: (1)
You have verified you have no ECU codes?
Most likely, either the car is going into limp mode, or you have an issue with your ignition or fuel system. Have you thought about taking your car to: http://www.a-spectuning.com/ ?
Most likely, either the car is going into limp mode, or you have an issue with your ignition or fuel system. Have you thought about taking your car to: http://www.a-spectuning.com/ ?
#32
Full Member
Thread Starter
Join Date: Mar 2007
Location: chicago
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
no i have not verified that I have no ecu codes. How can I verify that? I have no check engine light that comes on. As long as I dont make the car boost high it will go to red line no problem. And I was also wondering on how I can reset the ecu?
#33
Mr. Links
iTrader: (1)
I'm not trying to be an *** or anything, but those are basic things you can easily find out by using the forum and the Factory Service Manual (which is available as a download).
Use the FAQ thread as it has links to most of your questions:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/
Download the FSM (Factory Service Manual):
https://www.rx7club.com/3rd-gen-archives-73/tech-manual-directory-614824/
There are troubleshooting guides in the FSM. Lastly, use and search the 3rd Gen section:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/
You have a 3rd Gen RX7, that's where you should be looking for information.
Use the FAQ thread as it has links to most of your questions:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/
Download the FSM (Factory Service Manual):
https://www.rx7club.com/3rd-gen-archives-73/tech-manual-directory-614824/
There are troubleshooting guides in the FSM. Lastly, use and search the 3rd Gen section:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/
You have a 3rd Gen RX7, that's where you should be looking for information.
#34
Full Member
Thread Starter
Join Date: Mar 2007
Location: chicago
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
I pulled the codes by using the diagnostics box it gave me 2 codes 23 and 51. that is the fuel thermosensor and the fuel pump relay. So should I get new sensors or used? what would be my best step in this situation?
#38
Full Member
Thread Starter
Join Date: Mar 2007
Location: chicago
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
I have a straight pipe. So that cat wouldn't be my problem. But about the limp mode after my car falls on its face right afterwards the exhuast tone kinda changes for a sec and response in acceleration is a lot less so I think that is the limp mode. I am gonna bring a multi meter from school tommorrow and test the two sensors.
#40
Can Post Only in New Member Section
Rex wont boost over 0.2bar
My car wont boost beyond 0.2bar. Everything seems fine, rats nest re piped. Reaches 0.2 wont go higher, at 4600rpm the big turbo comes on, takes the 0.2 but no rise in boost at all. No dips. Anybody got any ideas??
Thread
Thread Starter
Forum
Replies
Last Post
KAL797
Test Area 51
0
08-11-15 03:47 PM