Mikel
Enthusiast
Name : Mikel
Age : 47
Location : New Haven, CT
Joined : 2009-07-12
Post Count : 157
Merit : 2
 | | Subject: No cat. converter Fri Nov 20, 2015 6:47 pm | |
| Hi,
Would driving with no catalytic converter have any ill effects on the car? Mine died a while back and was removed. Much to my surprise, the second O2 sensor has not noticed it and I don't have a check engine light. My MPG has decreased slightly. Coincidence?
Thanks.
Mikel | |
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AA
Administrator
Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252
| | Subject: Re: No cat. converter Mon Nov 30, 2015 6:47 pm | |
| No ill effects, but many states do inspections to keep cats on cars. Maybe the person who removed yours knew what they were doing and used a dummy sensor, or programmed the PCM to ignore the code.
It won't decrease your MPG. If anything, the engine will run more efficiently without the cat. _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^  '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
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