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

Does having the CAS sensors switched prevent injectors from spraying fuel?

Old Dec 6, 2023 | 01:51 AM
  #1  
Xion's Avatar
Thread Starter
Full Member
Liked
Loved
Community Favorite
 
Joined: Sep 2023
Posts: 235
Likes: 24
From: Arizona
Does having the CAS sensors switched prevent injectors from spraying fuel?

So I installed a new wiring harness from wiring specialties and I am afraid I might have the Ne and G sensors put the wrong way because they only came labeled as trigger and home. I put trigger on top and home on the bottom.

i do get rpm reading on my apexi. It goes to 280-300rpm when I begin cranking

anyway I’m having a no start issue. Car cranks but won’t turn over. Motor only makes an attempt at starting with starting fluid. I know there is spark. I had a fuel leak before I fixed so I know fuel is running to the rails.

on my apexi, it shows a 15-16% injector duty when I begin cranking. Does that mean it’s spraying fuel?

will having the crank angle sensors switched prevent the injectors from spraying fuel even if the fuel pump sends fuel?

want to know before I begin tearing it apart to switch those guys again


edit: Also! I do smell gasoline from the exhaust when I attempt to crank. Must mean injectors are spraying then right?

Last edited by Xion; Dec 6, 2023 at 02:32 AM.
Reply
Old Dec 6, 2023 | 08:30 AM
  #2  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,837
Likes: 3,234
From: https://www2.mazda.com/en/100th/
Originally Posted by Xion
edit: Also! I do smell gasoline from the exhaust when I attempt to crank. Must mean injectors are spraying then right?
if you smell gas in the exhaust and it won't start, its flooded.

Reply
Old Dec 6, 2023 | 10:35 AM
  #3  
Xion's Avatar
Thread Starter
Full Member
Liked
Loved
Community Favorite
 
Joined: Sep 2023
Posts: 235
Likes: 24
From: Arizona
Originally Posted by j9fd3s
if you smell gas in the exhaust and it won't start, its flooded.
which means my crank angle sensors must be in the right place because the injectors only get pulse to fire if they are right? So just gotta keep on trying to deflood?
Reply
Old Dec 7, 2023 | 06:31 PM
  #4  
Valkyrie's Avatar
Lives on the Forum
Tenured Member: 20 Years
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 5,164
Likes: 167
From: Japanabama
WHY are you starting another thread to diagnose the same issue?
Originally Posted by Xion
on my apexi, it shows a 15-16% injector duty when I begin cranking. Does that mean it’s spraying fuel?
NO, it means the Power FC is sending a signal for 15% injector duty based on the fuel map, and the injectors are at least connected. It doesn't mean they're spraying fuel.

edit: Also! I do smell gasoline from the exhaust when I attempt to crank. Must mean injectors are spraying then right?
Obviously! Unflood the car!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TonyTurboII
Microtech
8
Jun 22, 2014 10:34 AM
FarNorthMotoring
Haltech Forum
8
Sep 8, 2005 03:15 AM
Tigersgyle789
2nd Generation Specific (1986-1992)
8
Jan 20, 2005 10:48 PM
von
2nd Generation Specific (1986-1992)
3
Apr 22, 2004 04:14 PM
Grizzly
2nd Generation Specific (1986-1992)
17
Feb 14, 2002 04:43 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 11:55 AM.