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Injecter Wires

30detkiwi

By 30detkiwi,
in Engines & Forced Induction

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30detkiwi Contributor

30detkiwi

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hay there people,

im trying to find out if i will hav trouble wiring up a rb25det using a r32 20det loom and ecu.i know about the side and top feeddz.

will i have to wire in a ballest resister???????

also do each injector hav positiv and negative pins on them or??? :laugh:

also how can i tell if my ecu is 20det or 25de.iv look at alot of dif ecu and the numbers on the front cover but im hereing alot of dif storys please help

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James_03 Mentor

James_03

Posted
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hay there people,

im trying to find out if i will hav trouble wiring up a rb25det using a r32 20det loom and ecu.i know about the side and top feeddz.

will i have to wire in a ballest resister???????

also do each injector hav positiv and negative pins on them or???

As I mentioned previously, the rb20det silvertop loom will go straight onto a r32 rb25 head only. It will run a r33 head as well, but the injector plugs will need to be changed, and it will also have no VVT solenoid plug. Nor will a chipped rb20 ECU have the ability to run VCT.

So if your not going to run VCT, and your able to change the injector plugs then it should be fine.

You will not have to wire in any resistor, both are high imp injectors. Each injector will have a common 12+ wire on it which goes back to your IGN relay. The ECU then pulses ground signals to each injector in order to fire it.

Each injector on the negative side will have a different coloured wire indicating the cylinder number on the ECU pinout.

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30detkiwi Contributor

30detkiwi

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Just completed a 30det in my 32,used a rb20det loom and had no troubles,also using a mapped 20 ecu,nit sure if any of this helps,head was a r33 rb25de s1

im doing to transplants atmo.got 30e bloc with 25de vvt head.runing 32 loom and gen1 25de chiped ecu.what sort of injecters did u use.im thinking of using sr20det 1z

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30detkiwi Contributor

30detkiwi

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As I mentioned previously, the rb20det silvertop loom will go straight onto a r32 rb25 head only. It will run a r33 head as well, but the injector plugs will need to be changed, and it will also have no VVT solenoid plug. Nor will a chipped rb20 ECU have the ability to run VCT.

So if your not going to run VCT, and your able to change the injector plugs then it should be fine.

You will not have to wire in any resistor, both are high imp injectors. Each injector will have a common 12+ wire on it which goes back to your IGN relay. The ECU then pulses ground signals to each injector in order to fire it.

Each injector on the negative side will have a different coloured wire indicating the cylinder number on the ECU pinout.

ok thanks is there a way to hard wire vvt to a 20det ecu?its geting dynod on friday and has piggy back in it(no afm)

also on my own project 30e 25vvt head,im runing gen1 25de ecu chiped for plus t and was told i kan hard wire vvt off the oxysensor if i put a 5volt relay or sumthing b4 it gets to ecu??????? chers guys

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