97 S14 smog questions. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

oscarsx · 09-26-2017, 12:04 PM

Recently purchased an s14, it was a non op due to a bad cat, anyways I took what I thought was he cat last night and found it was hollow.. (Apparently s14 came with those???) so the only cat that would be bad would be the one right under the exhaust manifold.

I just got a working cat from an s13, fits right up to where the hollow one goes. Now my question is, if I add that working cat to the car, would it compensate for the bad cat at the manifold or no..

Thanks in advance.

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Agamemnon · 09-26-2017, 08:01 PM

No. The only functioning cat on an s14 is in the down pipe and both O2 sensors are before the dummy cat. Get yourself another down pipe.

iLagX · 09-26-2017, 11:55 PM

i have a clean passed smog downpipe for s14.

oscarsx · 09-27-2017, 08:34 AM

Pm sent

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09-26-2017, 12:04 PM	#1
oscarsx Zilvia Addict Join Date: Apr 2006 Location: SoCal Posts: 697 Trader Rating: (6) Feedback Score: 6 reviews	97 S14 smog questions. Recently purchased an s14, it was a non op due to a bad cat, anyways I took what I thought was he cat last night and found it was hollow.. (Apparently s14 came with those???) so the only cat that would be bad would be the one right under the exhaust manifold. I just got a working cat from an s13, fits right up to where the hollow one goes. Now my question is, if I add that working cat to the car, would it compensate for the bad cat at the manifold or no.. Thanks in advance. Sent from my iPhone using Tapatalk __________________ IG: @ozc2jz

09-26-2017, 11:55 PM	#3
iLagX Post Whore! Join Date: Dec 2008 Location: 626/714 Posts: 2,940 Trader Rating: (40) Feedback Score: 40 reviews	i have a clean passed smog downpipe for s14. __________________ PARTING OUT S13/S14 NEED PARTS PM ME!

09-27-2017, 08:34 AM	#4
oscarsx Zilvia Addict Join Date: Apr 2006 Location: SoCal Posts: 697 Trader Rating: (6) Feedback Score: 6 reviews	Pm sent Sent from my iPhone using Tapatalk __________________ IG: @ozc2jz

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09-26-2017, 08:01 PM	#2
Agamemnon Post Whore! Join Date: Sep 2003 Location: Lake Stevens, WA Age: 41 Posts: 2,657 Trader Rating: (20) Feedback Score: 20 reviews	No. The only functioning cat on an s14 is in the down pipe and both O2 sensors are before the dummy cat. Get yourself another down pipe.