Electric Gremlin

[scooby-do]

I have search and have not found anything:

Car:
2005 WRX
2.2 Hybrid Motor (been in a week)
Cobb a/p ii
Voltage Grounding Kit
Voltage Regulator
Gauge Cluster
Sub Kit (no longer hooked to the battery, sub not in car)
Hella Horns
New Alternator
New Battery


(Pulled from a different Forum where there is also an open tread)

I just had a new motor put in the car so i am pretty certain it has nothing to do with the items installed in the bay. My amp wire has been disconnected and the only items going trough the firewall are my gauge lines and they are through the preexisting hole in the firewall right in behind the clutch (through the rubber grommet).

The car has been running perfectly till today when i washed it. the issue came back. I did not have my A/P hooked up so I am Tot sure of the voltage- however the interior dash lights began to dim and when I would hit the brake the radio and mirror compass would shut off, when i would hit the high beams or the 4 ways it would flicker. To me this is a definite voltage issue.

When I pulled into my spot and shut the car off and tried to restart- it just went black and everything cleared itself. (radio, odometer) I have gone though all the fuses to make sure they are all the correct and disconnected everything that was zip tied to the underside of the dash. I had one a little tight around the fuse harness. I do not think this is the problem as I moved the harness and nothing happened.

However I did find something interesting and I am not sure what it is. Under the dash there is a wire bundle just above the brake pedal. When I moved this harness all the lights came back on and the car started right up. Thus I have a feeling this is where my problem lies. (It was resting on the brake pedal arm) This would make sense for there to be a problem when the brake is depressed.

The problem is I do not have a clue as to what the harness is for. It is hard to describe as there are about 20 harness under there, but this a white harness located just to the right of the brake up against the plastic surround for the dash. It appears to be right to the right next of the OBD2 port.

Does anyone know what this harness is for? I know this is not the primary issue since it only happens with the car has been washed or driven in the rain, but if I can backtrack it from there then maybe there is hope.

I have checked all the light connections and they are intact and there is no moisture inside any of my light housing..

Have tested the battery and the alternator and they are both at 12V.


Thank you in advance.
__________________

[EvoEatr]

Pictures are worth a thousand words here...

Are you located in the U.S.? The only thing I can kind of think of up around there (to the right of the brake pedal) is the BIU..I have seen these cause some very very very odd problems before..So is this the closed deck EJ22 with EJ20 Heads? Also..there are two super multiple junction plugs right between the battery and the washer bottle on the drivers side that jump the gap over to the intake manifold (assuming this is a USDM car)...They make the pin outs so small in these..I have gotten WRX's and STI's with no start conditions and again some seriously odd problems because the pins back out of the terminals of these connectors...and its one of the last places "joe at the local garage" decides to look....

[scooby-do]

Pictures are worth a thousand words here...

Are you located in the U.S.? The only thing I can kind of think of up around there (to the right of the brake pedal) is the BIU..I have seen these cause some very very very odd problems before..So is this the closed deck EJ22 with EJ20 Heads? Also..there are two super multiple junction plugs right between the battery and the washer bottle on the drivers side that jump the gap over to the intake manifold (assuming this is a USDM car)...They make the pin outs so small in these..I have gotten WRX's and STI's with no start conditions and again some seriously odd problems because the pins back out of the terminals of these connectors...and its one of the last places "joe at the local garage" decides to look....

I am located in the US. I am the only owner of the car.

BIU?

I am not sure of what you mean by closed deck (sorry) but it is an ej20 block with ej20 heads. The variation is stroke of the pistons, we did not change the bore. So everything was plug and play.

I will have to take a look at the pins..

Thank you

[EvoEatr]

I am located in the US. I am the only owner of the car.

BIU?

I am not sure of what you mean by closed deck (sorry) but it is an ej20 block with ej20 heads. The variation is stroke of the pistons, we did not change the bore. So everything was plug and play.

I will have to take a look at the pins..

Thank you

BIU ( Body integrated Unit)...Its on the CAN (controller area network) so it communicates with the ECM, TCM ( if equipped) and other computers in the vehicle....Bad BIU's as I have seen can cause some very erroneous problems... Closed deck refers to the top or in subarus case the side of the deck of the block...

If the entire area around the cylinder bore is attached to the block ( with the exception of the coolant/oil passages its a closed deck compared to a semi closed or open deck with basically just the cylinder sleeve and possibly a couple connecting points (EJ20's are semi-closed deck) however none of this applies here..lol

[scooby-do]

BIU ( Body integrated Unit)...Its on the CAN (controller area network) so it communicates with the ECM, TCM ( if equipped) and other computers in the vehicle....Bad BIU's as I have seen can cause some very erroneous problems... Closed deck refers to the top or in subarus case the side of the deck of the block...

If the entire area around the cylinder bore is attached to the block ( with the exception of the coolant/oil passages its a closed deck compared to a semi closed or open deck with basically just the cylinder sleeve and possibly a couple connecting points (EJ20's are semi-closed deck) however none of this applies here..lol

Thank you.. I will look into things.

[flenhellis]

Hi guys, Thanks for your updates. I too looking for the same but not yet to find,,,,