Power FC Forum Apex Power FC Support and Questions.

AP engineering PFC installed. No start problem.

Thread Tools
 
Search this Thread
 
Old Sep 16, 2021 | 12:41 PM
  #26  
erevos's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
 
Joined: Mar 2002
Posts: 511
Likes: 15
From: Greece,Volos
Originally Posted by cr-rex
plug it in and find out
I don't have it but I am thinking to buy it. That's why I am asking...
Reply
Old Sep 16, 2021 | 07:05 PM
  #27  
Gregory Casimir's Avatar
Rotary Enthusiast
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Jun 2004
Posts: 1,416
Likes: 11
From: Miami , Florida
the reason i asked is cause i went through that issue when I had just got that same AP engineering ecu for my S5 turbo but i had to purchase that patch harness from Banzai racing.
Reply
Old Sep 22, 2021 | 01:09 PM
  #28  
erevos's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
 
Joined: Mar 2002
Posts: 511
Likes: 15
From: Greece,Volos
I leave this here for future reference. I will try it when I reinstall the PFC.

"Jumper the brown/white (constant 5v) with the signal wire green/yellow, the commander should then read 5v on the PIM and will confirm that the wiring is OK."

It is taken from this thread (https://www.rx7club.com/power-fc-for...ading-1097416/).
Reply
Old Sep 22, 2021 | 01:19 PM
  #29  
erevos's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
 
Joined: Mar 2002
Posts: 511
Likes: 15
From: Greece,Volos
Originally Posted by erevos
Does anyone know if I can use this cable to connect the map sensor directly to the POWER FC? My AP engineering PFC main unit has a similar 3 pin port on the side.


Bump for this one. I need someone to confirm that this type of connection works. Do I have to change any setting with the commander or is it plug n play? Thanks in advance.
Reply
Old Sep 24, 2021 | 10:39 AM
  #30  
erevos's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
 
Joined: Mar 2002
Posts: 511
Likes: 15
From: Greece,Volos
Can anyone provide a photo or any info about which type of MAP sensor should I use with an AP engineering PFC? Which one can work by replacing it directly with the stock S5 boost sensor?
Reply
Old Nov 19, 2021 | 06:09 AM
  #31  
erevos's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
 
Joined: Mar 2002
Posts: 511
Likes: 15
From: Greece,Volos
Hi all. Just to conclude this thread...with the help of a fellow rotary brother I solved the problem! The black highlighted map sensor reading was caused by the fact that the map sensor pin on the PFC was not connected to the harness at all!!! In fact, the single wire that is shown in the photo above, is the map sensor's wire! So after it was properly connected, the engine started perfectly and now my car runs fine. Thank you all for your help.

P.S. The 3 pin cable that is shown in the photo above is not intended to be connected directly with the main map sensor (it is used for the Apexi boost controller) but helped me to rewire the aftermarket map sensor.
Reply
Old Jun 23, 2022 | 11:38 PM
  #32  
jchapman's Avatar
Junior Member
 
Joined: May 2019
Posts: 8
Likes: 0
From: sacramento
hey i am having the exact same problem as you. where did you connect the long yellow wire? what does it go to exactly?
Reply
Old Nov 12, 2022 | 12:19 AM
  #33  
jchapman's Avatar
Junior Member
 
Joined: May 2019
Posts: 8
Likes: 0
From: sacramento
i’m still stuck on this problem. it’s been 5 months. can anybody help me ?
Reply
Old Jan 21, 2025 | 03:01 PM
  #34  
Rub20B's Avatar
Exhaust Manifold Leak
Tenured Member: 20 Years
Liked
 
Joined: Jun 2005
Posts: 815
Likes: 42
From: western europe
usually the long yellow wire is for the VSS (pin 1M) signal supposed to go to the cruise control box in case you want to see/log veh speed. In case the wire comes from pin 1O it needs to go to the mapsensor, which is pin 2H on the S5 turbo harness.

Another good thing on a FC is if you cut the wire from pin 1P and move it to pin 1V then connect some resistor like 2k between pin 1U and ground so the fueltemp sensor isnt flagged as a error you have the exh overheat light working as MIL, handy to let it flash in case of excessive knock. =)
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rash_rvg
3rd Generation Specific (1993-2002)
7
Sep 15, 2021 08:37 AM
FD3S_SE
Power FC Forum
1
Jul 2, 2009 08:53 AM
importrx7
Power FC Forum
1
Oct 12, 2004 06:08 PM
Rayman93RX7
Power FC Forum
4
May 16, 2003 07:00 PM
XLR8NG
Power FC Forum
2
Jan 26, 2003 10:39 PM




All times are GMT -5. The time now is 07:06 AM.