Power FC Forum Apex Power FC Support and Questions.

Power FC o % inj duty when cranking?

Thread Tools
 
Search this Thread
 
Old Aug 23, 2009 | 05:50 PM
  #1  
jorx7's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Mar 2001
Posts: 677
Likes: 1
From: NJ
Question o % inj duty when cranking?

car ran fine last weekend. went to crank her over today and wont start checked voltage on all conectors all is good. felt maybe replace 2 injector relays. still cranks but no fuel going to motor. pump is getting voltage. should i check ohms on any sensor. hey banzai if you read this and have any thoughts. please feel free. im running pfc on my 90 n/a. grounds are good.
Reply
Old Aug 23, 2009 | 07:15 PM
  #2  
Banzai-Racing's Avatar
Rotary Specialists
Tenured Member: 15 Years
Liked
Loved
Community Favorite
iTrader: (11)
 
Joined: Jan 2008
Posts: 4,868
Likes: 344
From: Indiana
You have 12v power at the injectors? If you do then it could be a CAS issue. It is what tells the coils and injectors to fire.
Reply
Old Aug 23, 2009 | 07:40 PM
  #3  
jorx7's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Mar 2001
Posts: 677
Likes: 1
From: NJ
Question

ill recheck that tommorow. i believe one side of the conector had 12 and the other side had 2volts. when i checked the secondaires. that was for both conectors. have to take off mainfold to check primaries. ill update tommorow with what i get.
Reply
Old Aug 24, 2009 | 04:55 AM
  #4  
Banzai-Racing's Avatar
Rotary Specialists
Tenured Member: 15 Years
Liked
Loved
Community Favorite
iTrader: (11)
 
Joined: Jan 2008
Posts: 4,868
Likes: 344
From: Indiana
You should have 12v and 0v. if you have voltage on the trigger wire from the PFC there amy be a short in the engine harness.
Reply
Old Aug 24, 2009 | 07:16 PM
  #5  
jorx7's Avatar
Thread Starter
Senior Member
Tenured Member: 20 Years
iTrader: (11)
 
Joined: Mar 2001
Posts: 677
Likes: 1
From: NJ
Question

well started up after work today. maybe was moister somewhere? we had a couple days of heavy rain.but now its breaking up low. i also noticed my dash lights cutting out the past couple of weeks when i drive. could that possibly cause a short?
Reply
Old Aug 25, 2009 | 04:43 AM
  #6  
Banzai-Racing's Avatar
Rotary Specialists
Tenured Member: 15 Years
Liked
Loved
Community Favorite
iTrader: (11)
 
Joined: Jan 2008
Posts: 4,868
Likes: 344
From: Indiana
If your dash lights are cutting out, then you do have a short. I don't know how the two are related.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Aramir
New Member RX-7 Technical
24
Oct 18, 2015 02:39 AM
RX200013B
Haltech Forum
7
Oct 12, 2015 09:45 PM
Robrods64
New Member RX-7 Technical
6
Oct 2, 2015 07:56 PM
93FD510
New Member RX-7 Technical
2
Oct 1, 2015 02:00 PM




All times are GMT -5. The time now is 06:08 PM.