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Old 07-06-2001, 02:35 AM   #1
WRX Power
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Member#: 7142
Join Date: Jun 2001
Location: San Diego, CA
Default Blitz Dual TT install questions

1) Does the hand brake wire HAVE to be hooked up for the unit to function? Reason being that I plugged in everything EXCEPT the hand brake wire and ecu output wires, and the unit refused to enter a countdown state. It did power on and do everything else just fine however.

2)Anyone have the exact size fitting for a new tee-line? The one that comes with it, that ****ty... I swear it must be 1/32nd inch diameter? Anyhow, I am thinking that it is a 1/16" to 1/4" tee connector. If anyone can verfiy or give me the correct one, thank you. The hose that goes to the unit is very very small, and I want to tap in to the BOV line (which is 1/4")

3)Ok... I am going to have my dash apart soon. How hard is it to remove the center counsel? I have a manual tranny. I also know there are two screws in the counsel, but what else is involved?

Thank you

-Bryan
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Old 07-06-2001, 02:59 AM   #2
flipguy80
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Join Date: Apr 2001
Chapter/Region: SCIC
Location: Irvine,CA
Vehicle:
2002 WRX
Platinum Silver Metallic

Default

Answer to #1: If you dont want it on the hand brake, then ground the wire or else it won't go into count down...

#2 I'd like to know as well...

#3 Dunno


-David
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Old 07-06-2001, 03:56 AM   #3
Jan Shim
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Location: Brunei Darussalam
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1998 WRX Wagon (Ret)
Silver

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Hi Bryan,

You should consider the hand brake connection a security feature and also a reminder that your handbrake isnt up. When this wire is connected, the turbo timer wont work reminding you that you have not pulled up the hand brake. Once the turbo timer is activated, releasing the hand brake triggers an engine shutdown before the timer countdown is completed (in case the scenario is of a thief driving your WRX away). Quite scary considering if the handbrake feature isnt there, the car can essentially be driven away.

The ECU wire that the DTT connects to is the speedo. I believe the timer also kills engine idle if for some reason you vehicle gets a push (even if handbrake is up but not enough to stop the vehicle) and the speedsensor tell the DTT that the vehicle is moving. The speed sensor input is to help DTT determine the 'correct' idle period which i found is too conservatively low. Hence i never use it but leave the wire hooked for that added security.

I have not had the opportunity to remove the centre console of a 2001/2002 WRX. If they are anyway the same as previously generation GC8/GF8, you can use my instructions in the link below as a guide. Look under "Centre Console Removal"

http://members.tripod.com/wrx_act/tech/wrx_faq.htm

Re your Q2., the Blitz DTT doubles as a digital boost gauge. Why do you want to connect the BOV vacuum hose which is typically quite thick and big? Blitz DTT comes with a T-fitting that's perfect for normal/stock 4mm vacuum hose on both ends while the smaller T- goes to the supplied black hose. Please choose another pressure source, not the BOV vacuum or the fuel pressure regulator.
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Old 07-06-2001, 12:17 PM   #4
WRX Power
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Default

Ok Jan thanks.

Only thing is I'm not sure which 4mm hose to connect to, that's why I wanted to use the BOV line. I was just going to go to Autozone and buy a Tee fitting that will connect the 1/16" hose that comes from the DTT to the 1/4" from the BOV hose.

If anyone DOES know which other line I can tap in to, please let me know. I saw a couple smaller hoses near the turbo (one going to the compressor, one tee'd at the wastegate, etc.)
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Old 07-06-2001, 05:53 PM   #5
Jan Shim
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Silver

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Bryan,

Dont use any of those lines that go to the turbo or fuel pressure regulator although I have actually shared the vacuum earlier on with the FPR, I didnt notice any difference but it is not recomended.

I've enclosed a photo that I hope will give you a good idea where to get a good vacuum port. I havent taken a 2001/2001 engine photo close enough to make these annotations.

Once again, i hope it's useful to you
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Old 07-06-2001, 06:34 PM   #6
WRX Power
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You're one of a kind Jan, thanks for the photo reference. I believe the install will go quite nicely now.

-Bryan
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