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Author Topic: Exhaust Question  (Read 691 times)

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usmctj_97

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Exhaust Question
« on: February 16, 2011, 11:18:23 PM »
Anyone know wether the O2 sensor in the cat for a 97 TJ should be pointed torwards the front or rear
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Offline sharpxmen

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Re: Exhaust Question
« Reply #1 on: February 16, 2011, 11:42:10 PM »
Quote from: usmctj_97 on February 16, 2011, 11:18:23 PM
Anyone know wether the O2 sensor in the cat for a 97 TJ should be pointed torwards the front or rear

if I understand correctly you are replacing the cat and you're asking which way to install it?

the second O2 sensor measures the cat efficiency, i don't have a TJ but I'm pretty sure your O2 should be towards the muffler and not towards the engine/downpipe side (EDIT: so it samples the exhaust gases after passing thru the cat).

anyone with a TJ should confirm though...
« Last Edit: February 16, 2011, 11:43:09 PM by sharpxmen »
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'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
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usmctj_97

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Re: Exhaust Question
« Reply #2 on: February 16, 2011, 11:51:11 PM »
Jeep doesnt have a cat right now... replacing the entire exhaust ststem w headers cat and the new magnaflow off road pro series catback thats why I needed to know. I figured it was on the muffler side but I wanted to be sure
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