The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 09-21-2011, 10:26 PM
Dessertrunner's Avatar
Dessertrunner Dessertrunner is offline
Registered User
 
Join Date: Jul 2005
Location: Griffith NSW
Posts: 2,156
Controling the injectors

Hi all,
Can anyone tell me if there is any thing special about the power to the injectors. I want to make a test bench is it just a matter of supplying 12V to the head of the injector or do I need to do something more.
Tony
__________________
1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
Reply With Quote
  #2  
Old 09-22-2011, 10:48 AM
TomsSVX's Avatar
TomsSVX TomsSVX is offline
Maniac modifier
 
Join Date: Dec 2003
Location: Branchburg, New Jersey
Posts: 15,489
Registered SVX Classic SVX
Re: Controling the injectors

Its a pulse timed in ms
Reply With Quote
  #3  
Old 09-22-2011, 11:09 AM
92snowmachine 92snowmachine is offline
Registered User
 
Join Date: Dec 2009
Location: Denver, Colordado
Posts: 828
Registered SVX
Re: Controling the injectors

when i test injectors on the bench i jump power to the power side from a battery and then hook the negative side of the battery to a file. use a jumper between the file and injector signal. use a needle or something sharp and run the jumper across the ridges on the file. this will create pulses to make them spray. the faster you run it the shorter each pulse is. definitely redneck mechanics but it works.
Reply With Quote
  #4  
Old 09-22-2011, 05:22 PM
oab_au oab_au is offline
Registered User
Subaru Gold Contributor
 
Join Date: Mar 2001
Location: Coffs Harb, Australia.
Posts: 5,032
Significant Technical Input Registered SVX
Re: Controling the injectors

The injectors are 12 ohm, no dropping resistors, so they can be supplied with 12V. Just pulse the ground side.

Harvey.
__________________
One Arm Bloke.
Tell it like it is!

95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels.
97 Liberty GX Auto sedan. 320,000Kls.
04 Liberty 30R Auto Premium. 92.000kls.
Reply With Quote
  #5  
Old 09-23-2011, 04:42 AM
Dessertrunner's Avatar
Dessertrunner Dessertrunner is offline
Registered User
 
Join Date: Jul 2005
Location: Griffith NSW
Posts: 2,156
Re: Controling the injectors

Thanks guys there are good suggestions and putting me in the right direction.
Tony
__________________
1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
Reply With Quote
  #6  
Old 09-23-2011, 09:37 AM
svxcess's Avatar
svxcess svxcess is offline
Super Moderator
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Westminster, MD
Posts: 6,747
Significant Technical Input Registered SVX Classic SVX
Re: Controling the injectors

Quote:
Originally Posted by oab_au View Post
The injectors are 12 ohm, no dropping resistors, so they can be supplied with 12V. Just pulse the ground side.


Harvey.
I thought that either the ground or positive could be pulsed, which one was most convenient.

.
__________________
.
Subaru Ambassador

1996 Polo Green LSi #216..138,100 miles...SOLD

JFICX8659TH100216.....Date of Manufacture: November 16, 1995.....
Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan

In-Service Date: January 2, 1997



"The Pristine Green Polo Machine”
First Polo Green on the Network
First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000)
First 5000K HID factory fog lights (2007)
First SVX JDM BBS wheels on a USDM SVX (2013)

HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler.


R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016

2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback

2007 Mazda Miata MX-5 PRHT...102,000 miles.
Plenty of parts, service and windshields.


4th Registered Network member —2/21/2001

My NEW locker..I...My Email..I..Wikipedia/SVX .

.
Reply With Quote
  #7  
Old 09-23-2011, 11:40 AM
92snowmachine 92snowmachine is offline
Registered User
 
Join Date: Dec 2009
Location: Denver, Colordado
Posts: 828
Registered SVX
Re: Controling the injectors

you can pulse either side but it's best to mimic the setup in the car as closely as possible if you are doing more than making sure that they just click.
Reply With Quote
  #8  
Old 09-23-2011, 09:48 PM
kwren's Avatar
kwren kwren is offline
Registered User
 
Join Date: Aug 2006
Location: washington state
Posts: 3,499
Re: Controling the injectors

Quote:
Originally Posted by 92snowmachine View Post
you can pulse either side but it's best to mimic the setup in the car as closely as possible if you are doing more than making sure that they just click.
I have to go with John on this one... I don't think there is any difference in the results... none!

Keith
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 09:05 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122