Power FC Forum Apex Power FC Support and Questions.

Power FC Bac issues

Thread Tools
 
Search this Thread
 
Old 09-11-18, 03:41 PM
  #1  
Junior Member

Thread Starter
 
bmorerotors's Avatar
 
Join Date: Jan 2013
Location: Baltimore, MD
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Bac issues

Trying to figure out issues with my t2 swapped s5 vert. It's running a Pfc and bonzai adapter harness. Bas is currently unhooked, and it's idling so so. I'd like to get it back hooked up and running proper. When connected it revs up to 3k+ and surges. Have tried resetting the pfc and learning the idle, but no such luck. Anybody have any idea of what to look for next? (I'm running around in circles on the forums trying to search for things, hopefully somebody knows something.)
Old 09-13-18, 07:22 AM
  #2  
Rotary Specialists
RX7Club Vendor
iTrader: (11)
 
Banzai-Racing's Avatar
 
Join Date: Jan 2008
Location: Indiana
Posts: 4,824
Received 307 Likes on 179 Posts
If you have the JDM BAC it will not have the adjustment screw, regardless of which one you have you need to readjust all your previous throttle body settings. Being able to adjust the BAC makes things easier



Old 09-13-18, 07:37 AM
  #3  
Rotary Specialists
RX7Club Vendor
iTrader: (11)
 
Banzai-Racing's Avatar
 
Join Date: Jan 2008
Location: Indiana
Posts: 4,824
Received 307 Likes on 179 Posts
You will also need to adjust the fuel corrections for the idle area of the map.
Old 09-13-18, 11:10 AM
  #4  
Junior Member

Thread Starter
 
bmorerotors's Avatar
 
Join Date: Jan 2013
Location: Baltimore, MD
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
So the BAC has been adjusted when Unplugged to the point of the car idling relatively fine, but when plugged in, the BAC opens 100% and the engine revs to the moon. Just trying to figure out why the BAC is going full open and not trying to modulate air at all.
Old 09-13-18, 11:24 AM
  #5  
Rotary Specialists
RX7Club Vendor
iTrader: (11)
 
Banzai-Racing's Avatar
 
Join Date: Jan 2008
Location: Indiana
Posts: 4,824
Received 307 Likes on 179 Posts
Take is off and clean it. Adjust it when it is plugged in not when it is unplugged. When it is unplugged it is just an unregulated vacuum leak
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vrracing
2nd Generation Specific (1986-1992)
6
07-04-12 06:12 PM
13bdarren
Megasquirt Forum
5
10-15-10 05:38 PM
apexhittinbull
2nd Generation Specific (1986-1992)
6
03-13-09 07:34 AM
fabes21
3rd Generation Specific (1993-2002)
9
03-05-08 09:53 PM
astrochild7
2nd Generation Specific (1986-1992)
6
01-10-05 04:45 PM



Quick Reply: Power FC Bac issues



All times are GMT -5. The time now is 11:43 PM.