Official: WED Night Va-Jay-Jay Statue Meet 9pm
I did the reverse lights, 3rd brake, interior etc... Sedan is easier than the wagons because the wagons use one dual filament bulb vs separate bulbs in the sedan. Turn signals require a ballast or new flasher module, so if you do them right away you will get hyper blink or burned fuses like I did. I found the correct bulbs for the wagon and the FXT but they are ridiculously expensive.
Let me see what I have, I might have some 7440s left over, but I know I sold one set.
Let me see what I have, I might have some 7440s left over, but I know I sold one set.
Looks like this:

50W 6ohm is the most common to resolve most hyper flashing and Canbus irregularity issues. Make sure to mount them on metal as resistors will get hot as that is their operational nature. You will need one per LED bulb.
It's QQ thankyouverymuch
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Car Info: 2011 SWP WRX Hatch
I got all of my LEDs from amazon. Also tapped in resistors for the turn signals.
Although I had to keep one halogen on the parking light circuit. **** got cray when they were all LED.
Although I had to keep one halogen on the parking light circuit. **** got cray when they were all LED.
Registered User
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From: Los Altos, CA
Car Info: 2002 Impreza RS, 2005 Impreza RS-20K
Don't need a ballast or anything unique. What you really need is a load resistor, thats the fundamental basis of w/e they are calling it these days, flasher modules, etc. They are all fundamentally load resistors.
Looks like this:
50W 6ohm is the most common to resolve most hyper flashing and Canbus irregularity issues. Make sure to mount them on metal as resistors will get hot as that is their operational nature. You will need one per LED bulb.
Looks like this:

50W 6ohm is the most common to resolve most hyper flashing and Canbus irregularity issues. Make sure to mount them on metal as resistors will get hot as that is their operational nature. You will need one per LED bulb.
too bright?
You will experience hyperflashing when converting to LEDs from halogen, regardless of a computerized ECM or old school vehicle.
That is due to the LED Diodes being way more efficient in ignition than the halogen filament. That is why there is the load resistor to add more load and slow down the voltage transferring so that the pulses of voltage do not get relayed as quickly from end to end.
Just think of a LW flywheel, its lighter so you can rev faster compared to the original heavier weighted flywheel disc. More efficiency means you can ignite, turn on and off the bulb faster with a much shorter delay time.
It's QQ thankyouverymuch
iTrader: (39)
Joined: May 2007
Posts: 19,721
From: San Jose
Car Info: 2011 SWP WRX Hatch
The parking lights started blinking with the turn signals. Everything on the parking circuit. Including the interior lights.
I also don't think the ECU controls the blinkers. It would be much simpler to use a blink circuit. But the problem with a blink circuit is that they rely on resistance to function properly. If the resistance isn't right (LED, Halogen, burnout) the blink circuit will function differently (hyper blinking).
I think there is a similar kind of function in the parking circuit. If the resistance isn't right, the circuit goes crazy.
I feel like all of this is kind of a good indicator that you have a burnout.
I also don't think the ECU controls the blinkers. It would be much simpler to use a blink circuit. But the problem with a blink circuit is that they rely on resistance to function properly. If the resistance isn't right (LED, Halogen, burnout) the blink circuit will function differently (hyper blinking).
I think there is a similar kind of function in the parking circuit. If the resistance isn't right, the circuit goes crazy.
I feel like all of this is kind of a good indicator that you have a burnout.
Registered User
iTrader: (9)
Joined: Sep 2011
Posts: 3,037
From: Los Altos, CA
Car Info: 2002 Impreza RS, 2005 Impreza RS-20K
The parking lights started blinking with the turn signals. Everything on the parking circuit. Including the interior lights.
I also don't think the ECU controls the blinkers. It would be much simpler to use a blink circuit. But the problem with a blink circuit is that they rely on resistance to function properly. If the resistance isn't right (LED, Halogen, burnout) the blink circuit will function differently (hyper blinking).
I think there is a similar kind of function in the parking circuit. If the resistance isn't right, the circuit goes crazy.
I feel like all of this is kind of a good indicator that you have a burnout.
I also don't think the ECU controls the blinkers. It would be much simpler to use a blink circuit. But the problem with a blink circuit is that they rely on resistance to function properly. If the resistance isn't right (LED, Halogen, burnout) the blink circuit will function differently (hyper blinking).
I think there is a similar kind of function in the parking circuit. If the resistance isn't right, the circuit goes crazy.
I feel like all of this is kind of a good indicator that you have a burnout.
If in doubt, FLAT OUT
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Joined: Oct 2010
Posts: 7,046
From: Nor Cal SJ
Car Info: 2010 Hatch, 2011 Sedan
I bought some of mine from SuperbrightLEDS and some from V-LEDs. The Sperbrights were definitely brighter, but the V-LEDs were better built. I sold the V-LEDs in the end though. This is a 7440 in my tails in the WRX. Didn't work, it would blow the fuse when you stepped on the brake. So I flipped polarity and it would blow the other fuse, so I could get no driving light OR brake lights, but not both. Unfortunately, the FXT uses the same bulbs (dual filament).

Possibly selling the BBS tonight so may or may not be at the meet tonight.
Last edited by 04GG; Aug 20, 2014 at 03:12 PM.
Nobody likes the tuna here
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Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
Nobody likes the tuna here
iTrader: (51)
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Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax


