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Old 08-27-2013, 06:36 PM   #1
Scooby Newbie
Member#: 217150
Join Date: Jul 2009
Chapter/Region: W. Canada
Location: Edmonton
1993 Wrx rhd gc8

Default Legacy Down After Twin To Single Swap, Help Me Out

Hey guys, so i have a BD5 94 legacy RS Sport not the GTB but the sport.

A couple months back i decided to do the single turbo swap off the "dirty ol legacy" webpage, I have now successfully got everything back in and went to turn it over to have it not turn on, it cranks, and sounds like one cylinder gets ignition but it does not fire up completely.

i went over the grounds and whatnot and everything looks to be hooked up. i have a couple questions of my own but need the genius' of NASIOC to help me out.

First, on your injectors there is a black and grey harness for each side, which one goes to which cylinders(my understanding is that grey is the front cylinder and black is the back, same as the coils).

Second, the fuel lines coming out of the firewall (3 of them) from top to bottom which goes where? top to vent, middle to return and bottom to fuel filter(feed)? or how does that go?

Third, what ECU goes with the 440cc injectors? and will an RA and regular one work for the same injectors?

Forth, are there any sensors that would inhibit the car from starting? i have most of them on but the O2 is not and the original exhaust cat sensor is removed as well.

Fifth, Is there more then one intake ground? i have the main one behind the alternator hooked up but i have seen talk of another but had no luck finding it. I was told it might be one related to the injectors, where is this ground they speak of?

Sixth, i did the parallel fuel rail mod, i dont know if this info will affect but im telling

Seventh, Electronic boost controllers, i swapped for a manual, is this gonna be an issue with removing the black box and then converting to MBC? should i source a EBC and put that in?

can any one else shed light on this? it would be greatly appreciated. or if there is any idea of what it could be or methods to track down the issue, it would all be helpful. Thanks, Paul!
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