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Old 11-28-2002, 12:57 AM   #1
zaidallas
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Member#: 4106
Join Date: Feb 2001
Location: Expected whp/torque at 25 psi : 450
Default What size bung is needed for factory EGT probe ?

I got an uppipe with no egt bung and need to add one to fit the wrx factory probe ( I don't have a probe to look at). Anyone done this ?

zaidoun
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Old 11-28-2002, 12:26 PM   #2
rlavalle
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Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

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Not the reply you're looking for... but I wouldn't do this.

The stock EGT sensor fails in under 1000 miles after switching to an up-pipe.

Mine failed 3 hours from home. The car went into "limp nowhere mode". She'd start and idle, but would die when given any throttle. Turned out the EGT sensor had fried and the CPU thought the engine was on fire! I had her towed to a shop and drove home in my girlfriend's car (we were at a track day).

Disconnecting the EGT sensor from the wiring harness was a temp fix. If I'd only known!

Later, I had to find a bolt that fit the EGT bung in my up-pipe, grind it down to the right length, and plug the hole. Then I used the resister mod to keep the ECU happy with EGTs.

So I wouldn't waste time & money on a mod that won't help you and will likely fail. The stock EGT sensor is there to protect the up-pipe cat. And since you don't have one...

Russ
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Old 11-28-2002, 12:30 PM   #3
trhoppe
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Chapter/Region: South East
Location: Hotlanta, GA
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Exactly what he said! Mine came with a bolt to plug the EGT bung. Go to Radio Shack, get a 2.2K ohm resistor, spade connectors and some electrical tape and insert that into the connector. Remove your EGT probe and install it on the shelf \

No CEL for me (well except for that rear O2 and the Fuel Cap one)

-Tom
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Old 11-28-2002, 12:38 PM   #4
cnk
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Chapter/Region: Tri-State
Location: NJ
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2013 BRZ Limited 6MT
DGM

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I've been running with my stock EGT sensor in my Vishnu uppipe for over 7000 miles and never had a problem so I don't think it happens to everyone. It's up to you. . although I would agree that it's probably a lot easier to do the resistor mod than it would be to drill and weld a bung on your brand new uppipe.

Calvin
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Old 11-28-2002, 12:39 PM   #5
rlavalle
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Java Black Pearl

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Tom, I sent you a PM.

Russ
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