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Discussion Starter #1
Is anybody running in-line resistors for their low-independance injectors?

I remember reading a post on it awhile back but i can't seem to find it.
I found some at radioshack but i'm not sure which ones to get.

if anybody can help me i would greatly appreciate it. thanks ~ Matt
 

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From Hondata. Use the resistor pack (ugly gray box in the engine bay) from an OBD-I honda.


More info here http://www.k20a.org/forum/showthread.php?p=518933
theres 2 wires going to each injector.

each one has a solid color and a yellow/black wire.

all the yellow/black wires go straight to the injector just like they are now , thats IGNITION POWER. they way you are describing is CONSTANT POWER , use the stock wires , not new ones you made , no need.

the 4 solid color wires , go into the resister box , the #1 to the #1 INPUT wire , than the #1 OUTPUT wire goes to the 2nd wire of #1 injector. so forth for all 4.
Take all your injector wires and separate the triggers...

run the triggers...

to injector #1 Input (pink)

to injector #2 Input (brown)

to injector #3 Input (orange)

to injector #4 Input (dark green)

and Ground the two (2) black wires

Take

injector #1 Output (pink)

injector #2 Output (brown)

injector #3 Output (orange)

injector #4 Output (dark green)

and wire them into the ground side of their associated injector.

Wire the open pin on each injector to + Battery Power

lastly... wire the two (2) red/ power leads to + Battery Power


.
 

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Discussion Starter #3
thanks but thats not what i was looking for. I want to run in-line resistors. I don't want to run a resistor box.
 

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Yes, you can run inline resistors to each injector.

Just make sure your end impedence is 12ohms.

- Derek
 

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on your power wire going to the injector is were you install the resistor.
all you gotta do is cut the wire and solder the resistor in series meaning the yellow/black wire you just cut. solder the resistor to each end. doesn't matter how you place the resistor since they have no polarity.

also i think you need a 10watts at minimum resistor and measure the injectors resistance "impedance" if it reads 2ohms then you need a 10ohm resistor capable to handle minimum 10watts. you can buy them at radio shack.

 

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Discussion Starter #9
on your power wire going to the injector is were you install the resistor.
all you gotta do is cut the wire and solder the resistor in series meaning the yellow/black wire you just cut. solder the resistor to each end. doesn't matter how you place the resistor since they have no polarity.

also i think you need a 10watts at minimum resistor and measure the injectors resistance "impedance" if it reads 2ohms then you need a 10ohm resistor capable to handle minimum 10watts. you can buy them at radio shack.


thanks man, so which one of these would i need?
http://www.radioshack.com/product/index.jsp?productId=2062290
http://www.radioshack.com/product/index.jsp?productId=2062291

they are both 10 watt 10ohm but then it says 10% wirewound and 5% wirewound. Whats the difference?
 

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Not sure why you want to run in line resistors. You'll probably have issues with the solder breaking off each end of the resistor cause it will end up twisting alot. Sooner or later it will give.
 

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i agree , run a reister box and hide it somewheres. thats what ill be doing in spring. less chance for any problems imo.
 

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get 5%

that's the % Tolerance that the resistor can be off target ex: 5% more(10.5ohms) or 5% less than (9.5ohms)
normally the lowest Tolerance you will find is ±3% on any electrical device and that's mainly for high end expensive commercial or government electrical components.
 

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Discussion Starter #13
get 5%

that's the % Tolerance that the resistor can be off target ex: 5% more(10.5ohms) or 5% less than (9.5ohms)
normally the lowest Tolerance you will find is ±3% on any electrical device and that's mainly for high end expensive commercial or government electrical components.
thanks alot man.:up:
 
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