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Discussion Starter · #1 ·
I could really use some figuring out what this plug under the dash goes to. The car is a 96 Impreza Brighton coupe with a 2.2 dropped in. I got the project from a friend and have been trying to get it running. I know the blue and black plugs run to the back of the car for fuel pump. Is this something fuel related also, like a module? I've done a lot of reading and haven't found anything useful, also forgive if this is a dumb question, it's my first Subaru 馃檭



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98RS, 98RS, 99RS, 99L
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First generation imprezas dont have a fuel module, it鈥檚 just the fuel pump relay and the pump itself. Do you know if the entire harness was swapped from a newer car? That could be the power door harness, I know the passenger side has the two rear harnesses, door harness, and a smaller harness on the RS that powers the sunroof and dome lights. I would check one of my cars but Im currently on vacation.
 

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2005 Impreza RS, 1997 Impreza L, 2019 sti, 2010 Legacy
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How many wires go to it and what colors? It could just be a test mode connector if its behind the kick panel on passenger side
 

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In that corner we have...

B81 2 pole, non colored plug, blower motor
B82 8 pole, non colored plug, door lock timer
B83 2 pole, blue colored plug, front wiring harness RH with ABS
B84 12 pole, black plug, rear wiring harness
B85 16 pole, blue plug, rear wiring harness
B86 13 pole, non colored plug, front door cord RH

B87 2 pole, black plug, diode for DRL's in Canada land
B88 10 pole, non colored, DRL control module for Canada
B89 4 pole, blue plug, DRL hi beam relay
B90 5 pole, black plug, DRL relay
B98 1 pole, green plug, test connector
B99 1 pole, green plug, test connector

I believe we are looking at the bolded plugs
 

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Discussion Starter · #6 ·
First generation imprezas dont have a fuel module, it鈥檚 just the fuel pump relay and the pump itself. Do you know if the entire harness was swapped from a newer car? That could be the power door harness, I know the passenger side has the two rear harnesses, door harness, and a smaller harness on the RS that powers the sunroof and dome lights. I would check one of my cars but Im currently on vacation.
As far as I know the harness is the original from the car. Dash and interior had never been pulled prior.
 

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1995 EZ30 Coupe
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That's a 16 pole connector, I would think it goes to the fuel pump assembly. It's not on the chart/diagram posted by Silverton, but that's not the first time I've seen unlisted connectors.
 

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2005 Impreza RS, 1997 Impreza L, 2019 sti, 2010 Legacy
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That's a 16 pole connector, I would think it goes to the fuel pump assembly. It's not on the chart/diagram posted by Silverton, but that's not the first time I've seen unlisted connectors.
If you zoom in you can tell there are only 10 pins to it. The others are blanks, I thought the same thing when I saw it. But id agree with Silverton that its the Canadian DRL module.
 

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Discussion Starter · #12 ·
If you zoom in you can tell there are only 10 pins to it. The others are blanks, I thought the same thing when I saw it. But id agree with Silverton that its the Canadian DRL module.
So either way it's not a part of my issue causing it to not run unfortunately. I appreciate all the help and knowledge everyone's given
 

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That's a 16 pole connector, I would think it goes to the fuel pump assembly. It's not on the chart/diagram posted by Silverton, but that's not the first time I've seen unlisted connectors.
If you zoom in you can tell there are only 10 pins to it. The others are blanks, I thought the same thing when I saw it. But id agree with Silverton that its the Canadian DRL module.
zoom in? that's way too much work. OP posted a list of the wire colors. Only ten.
 

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1995 EZ30 Coupe
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Oof, I did notice there's only ten pins in the connector, however, number of pins refer to how many the connector is capable of holding. The number of pins actually in connectors changes depending on options like a/c or no a/c.
Like I said, I've had several cars that didn't exactly match the wiring diagrams, connector wise. The wire colors are USUALLY pretty accurate.
 

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Discussion Starter · #16 ·
Crank but no start? start with basics check for air, fuel, and spark. Then work back from there.
So I know the maf is good, getting air fine. For the fuel I've confirmed the pump works when directly connected to the battery but not when I have everything hooked and I try to prime with the ignition. Tested the relay and it's good as well.
Spark I've put on good, working crank and cam shaft sensors, cleaned up all the ground connections, ignition coil is good and getting power, but I get still get nothing.
 
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