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FerrariChat.com » General Ferrari Discussion Archives » Archive through November 18, 2002 » Will check engine light come on if i remove cats on a 95 355? « Previous Next »

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Ricky Nardis (Rickyn_f355)
Junior Member
Username: Rickyn_f355

Post Number: 103
Registered: 8-2002
Posted on Friday, November 15, 2002 - 1:36 pm:   

i got the tubi exhaust, the tubi test pipes, and the tubi air filters. I originally wanted to do the test pipes for the sounds but now I have learned that they will also make a big difference on keeping the headers running cool...seesm that even the high flow cats build alot of extra un-needed heat...
Martin (Miami348ts)
Advanced Member
Username: Miami348ts

Post Number: 3220
Registered: 5-2001
Posted on Friday, November 15, 2002 - 12:45 pm:   

Ricky,
if you remove the cats make sure to get a test pipe with a O2 sensor housing. If you put the O2s back in the light will not come on.
By disconnecting it will come on and read as a failior.

On your 355 the test pipes will likely not do much for performance. You have already free-flow CATS. Sounds better though! Will you also put a TUBI on as a muffler?

If you have not ordered them yet check with Tino, one of our sponsors for the Tubi and if you want a non-Tubi test pipe e-mail me and I will send you to the guy who did mine. Cheaper than Tubi.
Hubert Otlik (Hugh)
Member
Username: Hugh

Post Number: 303
Registered: 1-2002
Posted on Friday, November 15, 2002 - 12:38 pm:   

Ricky,

Nope, your car is OBD1 - 96 or older- you won't have a check engine light. However, if your car is newer than '96, even some of the late '96 cars were OBD2, then removal of the cats will cause a CEL; regardless, a CEL triggered by the 2ndary O2 sensors won't affect engine performance, but will mask any other problems.
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt

Post Number: 2252
Registered: 2-2001
Posted on Friday, November 15, 2002 - 11:31 am:   

Not unless you remove the oxygen sensors.
Ricky Nardis (Rickyn_f355)
Junior Member
Username: Rickyn_f355

Post Number: 101
Registered: 8-2002
Posted on Friday, November 15, 2002 - 11:02 am:   

i'm replacing them with Tubi test pipes...
thnx

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