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Old 03-23-2008, 12:34 PM   #1
Zora
Scooby Newbie
 
Member#: 74712
Join Date: Nov 2004
Chapter/Region: MAIC
Location: N. Potomac, MD
Vehicle:
1995 Impreza Wagon
Crimson Pearl Met.

Default Help! Front O2 Sensor thread size?

So I wrestled my front O2 sensor out and somehow the threads in the hole in the downpipe got a little messed up. I suspect the sensor was not screwed in properly by whoever put it in before me, but anyways - I need to clean/retap the hole in the downpipe, but I don't know what size tap to get. It's an older JDM engine (ej20g), but the sensor, Bosch 15726 is the same as other Impreza's from the 90's as far as I know. Does anyone know the thread size of that hole and where I could find the right tap? Help, I need to get the car running ASAP!
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Old 03-23-2008, 05:46 PM   #2
Arctic Penguin
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Member#: 119532
Join Date: Jul 2006
Vehicle:
2006 WRX

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M18 x 1.5
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Old 03-23-2008, 06:45 PM   #3
Zora
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Member#: 74712
Join Date: Nov 2004
Chapter/Region: MAIC
Location: N. Potomac, MD
Vehicle:
1995 Impreza Wagon
Crimson Pearl Met.

Default

Thank you! I actually figured out that I can measure it (duh) and got the same numbers.
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