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99 Coupe
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Yes that should be a correct way to merge those wires, on the RS the ECU ground-switches the relay so realistically it just needs to be grounded but it doesnt have to be that exact pin. But merging that with a ground split is the most convenient, so ill add that into the guide. Thanks for pointing that out.

Also a little update from my end, im working on the photos/video for the guide and tidying up the spreadsheets with pinouts for EJ205 merges, EJ25/DBW is a work in progress, but my site is up and the technical info page has all GC and GD service manuals as well as a ton of other stuff so let me know what you think. I will have a page dedicated to merging shortly

Project-car.net Technical information
 

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Ok got my harness back in the car over the past week. Got everything hooked back up and was going to start it today. Turn the key on and the fuel pump runs like it should but I have no starter when I go the crank side of the switch. What did I miss? I am pretty sure I triple checked all of my connections but I must have missed one.

I dont have the gauge cluster hooked up and I dont have the dash all the way back in it because I was wanting to run it first.
Going to dive in with a volt meter in the next couple of days but anything will be helpful.
 

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I ❤ BOOBIES
99 Coupe
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17,025 Posts
What year is your car? Id double chek your starter wiring, ive forgotten the ground on it more than once. After that run through your starter system from key, to interlock relay to the starter itself.
 

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Car is a 2000 with a 03 WRX swap. The battery ground is attached at the top of the stater, the small wire is attached, and the positive is attached. Going to check my switch wiring since this car had security system on it that I removed a while ago.
 

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Figured out what it was. I am dumb. I forgot that the clutch switch went bad before I parked it to do the swap. Jumped the switch and the car fired right up lol.
 

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Got a new question. When I am ready to flash a new map do I need both the white plug and the green plugs?
 

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I ❤ BOOBIES
99 Coupe
Joined
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17,025 Posts
Depends how you wired it in, it runs to the ECU so it should be there, me personally i merge them together and i have my green test connector on a switch since i flash it all the time.
 
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