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Using Power Fc Rb26Dett On A Rb20Det Engine

CUICDL

By CUICDL,
in Engines & Forced Induction

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CUICDL Rookie

CUICDL

Posted
Posted

so i have brought a car and has a rb26dett power fc on a rb20 engine ower said its be wired to run it. so he was right as i have managed to get it running but pretty S**T tune

just wanting to know if anyone knows about this or has done this. iv tried looking for a 26dett ecu pin out to compare it to a 20det but i can find ever ecu pin out BUT A 26dett. im gathering the 26dett loom would run 2 maf sensor things hence 1 would have to be joined with the other or tricked to think its not there

just want to make sure its running ... alright b4 it goings to tune

The Mafia Grand Master

The Mafia

Posted
Posted

The airflow meters are simply joined together so they read the same.

The GTR simply measures both, adds the values together and divides by 2.

WOrks fine with them linked, as I've done it many times with success.

If the car runs and starts, and all the sensors check out ok, then I wouldn't worry about touching it. Just get it tuned.

BlueRB240 Collaborator

BlueRB240

Posted
Posted

I think the injector 5 and 6 are swapped in the RB26 ecu plug vs the RB20 ecu plug. You can double check yourself it's been a long time since I looked at them.

http://www.s-chassis.com/resources/wiki/index.php/Skyline_ECU_Pinouts:_RB20,_RB25,_RB26

The Mafia Grand Master

The Mafia

Posted
Posted

I'm pretty sure its actually injector 4 and 6 that are swapped.

I've got the diagrams somewhere, and the full inscructions on how to make the RB26 ECU work in the RB20. I'll have a look tonight.

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