Who knows about chipped keys and ignitions? - Subaru WRX Forum
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post #1 of 16 Old 12-11-2010, 12:22 PM Thread Starter
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Who knows about chipped keys and ignitions?

I guess because I have an early 04, the ignition/key is not chipped. The last owner also said he lost the key, and had to get a new one and ignition put in at the dealership. I asked him if that one was chipped, or if it was blue. He claims that it was just a regular black headed subaru key even before.

My concern is that I want a chipped key. Car theft is rampant in this area and one thing I LOVED about my old STi is that it had that key. So I'm curious, how does it work? Is the ignition receiving constant power, and when it reads the chip it starts? If so, bypassing it to hot-wire the car would be just as easy as any other car by taking it out of the loop.

If it actually sends a signal fro the chip to the ECU to tell it to start, that would seem more useful. It would also make what I want to do impossible I believe. I'd like to find a wrecked one and buy the locks/ignition and keys so that I have a chipped ignition (not to mention a matching key for doors and ignition, unlike now.)

Anyone know if this is doable? Or is it as I said in scenario B, where the ECU receives a signal and thus one of these ignitions wouldn't be compatible without the matching ecu?

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post #2 of 16 Old 12-11-2010, 02:09 PM
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it's scenario B, we ran into that issue trying to swap a ver 8 motor into a GC8 and had to order the matching ignition and key from Subaru Japan

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post #3 of 16 Old 12-11-2010, 02:10 PM
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all you need is the ignition, key, ECU, and lock cylinders from a matching 05-07 STi

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post #4 of 16 Old 12-11-2010, 03:01 PM
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Yeah, 04 STi is the only USDM STi that didn't have chipped keys.

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post #5 of 16 Old 12-11-2010, 03:39 PM Thread Starter
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I could swear that mine did have a chipped key, my last 04 had the blue T shaped key... I guess I was only told it was chipped

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post #6 of 16 Old 12-11-2010, 03:45 PM
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Sounds like the SPT key, was a $150 factory option

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post #7 of 16 Old 12-11-2010, 03:46 PM Thread Starter
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But it was unchipped?

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post #8 of 16 Old 12-11-2010, 04:12 PM
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yeah the blue keys are unchipped

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post #9 of 16 Old 12-11-2010, 04:23 PM
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Yeah, it was just a cosmetic thing. You can duplicate that key at wal-mart for a few bucks if you want, no dealership stuff required. They just sold a fancy version as an accessory.

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post #10 of 16 Old 12-11-2010, 07:50 PM Thread Starter
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I've been had, Lol. Thanks guys. For the $300 it would likely cost to get an ignition, keys, locks, and ecu, and that's if I found someone generous, I think ill just put it toward an alarm. Thanks again!

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post #11 of 16 Old 12-11-2010, 08:58 PM
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and most high end alarms have immobilizers in them

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post #12 of 16 Old 12-14-2010, 10:37 AM
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Yeah, it's probably more cost effective for you to purchase a viper system and/or installing your own fuel pump kill switch.

FYI, i posted a long long time ago, the non-chipped WRXs are insanely easy to steal since I discovered it accidentally during an install. I removed that information from my post for obvious reasons.

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post #13 of 16 Old 12-14-2010, 10:52 AM
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damn I wish I remembered that post, now I'm curious as to why or how and really want to fix that issue lol even though I've got a clifford with and imobilizer I don't want my key to be easy to steal

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post #14 of 16 Old 12-14-2010, 01:49 PM
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If you don't want your car to be easy to steal, park it in places where it will be hard to steal. Sheesh.

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post #15 of 16 Old 04-05-2011, 07:48 PM
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To add to this rather aging post... I locked my keys in my car at work last week and without damaging anything whatsoever. Only took maybe three minutes with the aid of a bent wash bucket handle and a flathead screwdriver with assistance from a co-worker (acting as an extra set of eyes). So Viper alarm system here I come!

And as for the blue key, while searching for my car when I was shopping, I saw several with that key. And for some reason, I as well have it and I only have an 02 WRX. So I suppose there rather popular?

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