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Rd28 To Rb20E Swap

MJTru

By MJTru,
in Engines & Forced Induction

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MJTru Mentor

MJTru

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Hi.

I just finished installing an rb20e in the nissan laurel. First I used all the wiring from the skyline that the rb20e came out of. It started up and ran good. But I had no lights and was missing a few functions.

This was all after I installed fuel pump in the diesel tank and wired up a relay for the pump.

I decided to remove the skyline harness to install the factory laurel harness, but before I did that I split the harness apart and took out all the rb28 (diesel) wiring

that wasn't needed.

After all that I checked all the lights and features I didn't have before, and they all worked. Now I can't seem to get the engine to start it just roles over and I have no power to the single coil wire.

The only think I can think of is the inhibit relay. After tracing it I notice that the skyline harness has a wire coming from the a/t plug to the inhibit relay that seems to work by sending a ground signal to the only plug that wires into the engine harness.

I think I can work it out but I do really need a wiring diagram for a r33 skyline rb20e ecu. I just can't seem to find the one with the 4 plugs in it. Can any one please help.

Thanks.

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https://www.sau.com.au/forums/topic/439948-rd28-to-rb20e-swap/
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MJTru Mentor

MJTru

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Does anyone have the tcm pinout. I drove the car today. But it's not shifting Luke a normal car. I feel some of the tcm wiring are mixed up.

I'm looking for the pinout for a r33 rb20e .

thanks again. I'll post photos soon.

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