:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: imburne on November 11, 2011, 03:07:28 AM

Title: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 11, 2011, 03:07:28 AM
Before I go frying something out following a random writeup, I figure I should ask. How can I wire up this resistor box with these mods in mind? Thanks!

99 Civic DX
Conversion Harness (and I dont remember if it was obdII to obdIIa or vice versa, etc)
Neptune Ecu p28 converted
Precision 780cc Injectors
Resistor Box

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi259.photobucket.com%2Falbums%2Fhh319%2Fiburnclothing1%2FIMG_0657.jpg&hash=5707df7fc44110a4e989dcfd4649f28ff41ffd77)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi259.photobucket.com%2Falbums%2Fhh319%2Fiburnclothing1%2FIMG_0659.jpg&hash=dcb3e58111ca15487c451dc9f7edd2c85bf6a4f9)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi259.photobucket.com%2Falbums%2Fhh319%2Fiburnclothing1%2FIMG_0661.jpg&hash=29434cb21c56be90dd9fd21b29bd6db4a86e79ae)
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: Joseph Davis on November 11, 2011, 09:05:35 AM
Power on the red wire, run the black wires to individual injectors.
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: Tim on November 11, 2011, 11:53:39 AM
I just did this to a friends 96 obd2a so I don't know if it is the same as yours being a 99.

Under the intake manifold there is a 'dead man's plug' that supplies 12V+ to all of your injectors, as well as some other components.
Remove the blank plastic plug and find a junkyard replacement with a short length of wire.
Unpin your resistor box.
With a volt meter find out which 4 pins go to your injectors and unpin them from your new junkyard plug, repin them with your 4 black resistor box wires.
twist and solder the remaining JY wire leads to the red wire from your resistor box.
plug your new plug with resistor box in place of the 'dead man's plug'

Sorry its hard to describe in text for me.
I'll see if I can get some pics or at least an ms paint to make it more clear, but it will be plug and play with no stock harness damage.  You can go back to stock, or swap high imp. injectors in without needing to cut or solder.
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: HiProfile on November 11, 2011, 01:05:46 PM
You could do it a better way.

Buy some bosch or denso's that are high-z and not fuck with the box. Precision injectors are delphi, which is old tech atm. Even gen1 deka's are better.
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: Joseph Davis on November 11, 2011, 01:18:15 PM
Yes, but that would be quality over rigjob, Jeffery.
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 11, 2011, 05:27:39 PM
Power on the red wire, run the black wires to individual injectors.

Yes, the easy way. So literally connect the black wires to the ground of the injectors? I have done the inline resistors on 450s but since people tie this into the harness its confusing me probably more than it has to.

Moar info on this sir



Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 11, 2011, 09:51:30 PM
Oi, I need some halp.
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: HiProfile on November 11, 2011, 11:05:38 PM
Think of this as resistors with pigtails, where the "dead end" possitive side are already twisted together. There has to be a million writeups on it on the net.

I'm starting to understand why the website keeps shitting a brick. :P




Here's one that shows the wires. It's the four yellow wires on the plug near your clutch reservoir.

http://honda-tech.com/showthread.php?t=2266133 (http://honda-tech.com/showthread.php?t=2266133)
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: crazy_ivan on November 12, 2011, 12:18:27 AM
3rd post on that link shows it perfectly.
A dizzy plug off an 90-00 accord works nicely...
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 12, 2011, 12:32:29 AM
Thanks everyone for the input. Its been a few years since I have done any modifications on cars besides general maintenence so I am beyond rusty. Its coming back to me though slowly though.

Will have pics up in about a hour when I am done to see if I wired it right. Thanks again
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 12, 2011, 02:10:31 AM
Civic Resistor Box Wiring Question (http://www.youtube.com/watch?v=vAZwpiVylEc#ws)
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: t_cel_t on November 12, 2011, 03:10:58 AM
extension cords injector wires O0
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: snm95ls on November 12, 2011, 12:18:16 PM
That wiring makes baby Jesus cry.

 :-\
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: imburne on November 12, 2011, 07:03:38 PM
Will it blend is the question
Title: Re: Resistor Box Questions for Civic DX, Precision 780's, Neptune
Post by: HiProfile on November 14, 2011, 01:39:18 AM
extension cords injector wires O0

Last owner of my del sol did that for rear speakers. I had to wire the stockers back in. :-X