Notices
ECUs and Tuning Discuss Engine Management, Tuning, & Programming

Sequential Fuel injection

Thread Tools
 
Search this Thread
 
Old Sep 20, 2012 | 12:13 PM
  #41  
[Ode]'s Avatar
Newb
 
Joined: Jun 2012
Posts: 30
Total Cats: 4
From: Helsinki, Finland
Default

Bought four tiny lights with leads and tried the test mode today.

When in batch injection:

"inj1" powered injectors 1 and 4
"inj2" powered injectors 2 and 3

When in sequential:

"inj1" = injector 1
"inj2" = injector 3
"inj3" = injector 4
"inj4" = injector 2

Everything seemed to work as supposed to.

One thing i noticed is that the rewiring messed up my VE-table tune a bit and made the idle a bit rough and shaky.
Old Sep 20, 2012 | 12:52 PM
  #42  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,541
Total Cats: 4,364
From: Chantilly, VA
Default

idle should be smoother!
Old Sep 20, 2012 | 01:01 PM
  #43  
[Ode]'s Avatar
Newb
 
Joined: Jun 2012
Posts: 30
Total Cats: 4
From: Helsinki, Finland
Default

Yeah.. What i meant was that i did the rewiring but i still have to run the car in batch injection since it wont start / run in sequential. And when running in batch, it seems to be a bit rougher than it used to.

At first i did **** up by wiring it so that one of the injectors was getting two signals and one didnt get any (which was obvious as the car started coughing booze out of the exhaust). However, i dont see how this could have caused any damage to the engine that would explain any strange behaviour.
Old Sep 20, 2012 | 01:53 PM
  #44  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

I just wanted to let you guys know that I'm trying to run EV1 550s on batch fire in my 11.5:1 compression engine. **** is retarded. I might as well have hose-barbs for injectors.
Old Sep 20, 2012 | 03:03 PM
  #45  
shlammed's Avatar
Elite Member
iTrader: (8)
 
Joined: Dec 2008
Posts: 2,910
Total Cats: 51
From: Kingston, Ontario
Default

would stock injectors max out on your all motor setup?

IDK why you would run such big injectors for something like your setup.
Old Sep 20, 2012 | 05:35 PM
  #46  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

Originally Posted by shlammed
would stock injectors max out on your all motor setup?

IDK why you would run such big injectors for something like your setup.
Because that's all I had laying around and dont' own small injectors. I got 550 EV14s because I got a really good deal, couldn't really afford the IDs, and there is no way in hell I'd ever buy anything from Miata Roadster after he cried about me offending him and demanded my ban.
Old Sep 21, 2012 | 06:41 AM
  #47  
[Ode]'s Avatar
Newb
 
Joined: Jun 2012
Posts: 30
Total Cats: 4
From: Helsinki, Finland
Default

Alright chaps, i got the car running in sequential! The solution was embarrassingly simple: For some reason i had to change my req-fuel from 6.4 to 17.0! Now it seems to be running smoothly at desired AFR even though my injector pulse widths seem to be roughly twice as long as they were in semi-sequential. Judging from the smell there's no unburnt fuel so the AFR readings seem fine to me. I'm running 2 squirts per cycle alternating, although I'm not sure if it makes any difference in this case..
Old Dec 1, 2012 | 03:44 PM
  #48  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

Originally Posted by [Ode]
Alright chaps, i got the car running in sequential! The solution was embarrassingly simple: For some reason i had to change my req-fuel from 6.4 to 17.0! Now it seems to be running smoothly at desired AFR even though my injector pulse widths seem to be roughly twice as long as they were in semi-sequential. Judging from the smell there's no unburnt fuel so the AFR readings seem fine to me. I'm running 2 squirts per cycle alternating, although I'm not sure if it makes any difference in this case..
Shouldn't it be 1 squirt per cycle?
Old Dec 1, 2012 | 03:50 PM
  #49  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

Do these settings look right for:
EV14:

EV6:
Attached Thumbnails Sequential Fuel injection-whiteev6sequential.jpg   Sequential Fuel injection-greenev14sequential.jpg  
Old Dec 1, 2012 | 04:11 PM
  #50  
Reverant's Avatar
Elite Member
iTrader: (10)
 
Joined: Jun 2006
Posts: 6,019
Total Cats: 368
From: Athens, Greece
Default

Correct your bank 3 and bank 4 battery voltage correction.
Old Dec 1, 2012 | 04:17 PM
  #51  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

Originally Posted by Reverant
Correct your bank 3 and bank 4 battery voltage correction.
Fixed, thanks. Now I'm off to the doctor for x-rays. phale phale phale.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
Apr 12, 2021 04:21 PM
The Gleas
MEGAsquirt
3
Oct 1, 2015 09:30 AM
lsc224
Miata parts for sale/trade
2
Oct 1, 2015 09:17 AM
MiataGarage
Engine Performance
5
Sep 29, 2015 11:04 PM




All times are GMT -4. The time now is 08:17 AM.