I was always wondering if my cat isnt clogged because i run a terrible 1/4 mile. One person suggested that the O2 sensors were bad and should be replaced. At the auto shop they told me a bad O2 throws a SES light. Tonight i cut my old exaust off so i coudl put my new flowmaster on. Well, i jsut had to see what open exaust woudl sound like so i started the car. No SES light came on. I let the car run for probably over ten minutes. Is this normal? Does it jsut take a couple miles before it throws a code? Do I more than likely have a problem with and O2 sensor? In advance thanks for any help.
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No cat & no SES??
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It took my car 70 miles to throw a code when I was running with open headers. So it might just take a little while.98 Silver Camaro V6<br />15.238 @91.74 w/ 2.288 60\'<br />Mods: K&N, FTRA, Pacesetter Headers, Spec 3 Clutch, 160 Thermo, TSP Rumbler, 3\" Catco, Whisper Lid, 3.42\'s w/LSD, Aluminum DS, Man Fan Switch<br /><br /> <a href=\"http://www.cardomain
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Consider yourself an anomoly bruh-235/4517 Chrome Mondera Solaris<br />-Hornet remote start-keyless entry<br />-Pioneer 8400/CD/MP3<br />-2 Audiobahn 10\'s in custom box<br />-Flowmaster exhaust-SLP CAI-*180<br /><br />Never underestimate the predictability of stupidity....Tony from \"Snatch\"
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It'll come on just give it a little time... The PCM has to catch up..2000 Firebird. Whisper Lid, True duals, TSP mail order tune, Built Tranny , TCI 2800 stall verter, B&M tranny cooler, Eaton LSD, 3.42 gears. Current best ET. 15.232 89.09 MPH 2.175 60ft on stock 3.42\'s and open diff.<a href=\"http://www.geocities.c
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Your not in Canada are you? I'm begining to wonder if the 02 sensors are programed differently up here or something. I'v had my cat off for about 4 months now. No light. Resetted pcm/ecm many times. My car doesn't through a code for a misfire either, you can unhook a plug wire and it wont flash the light. (pulled my iat sensor once and it set the light - so it works)
In your case, maybe you just have to wait longer though.1997 Chevrolet Camaro<br />5 Speed STD 3.8L V6<br />Mods: !cat, Cherry Bomb Super Turbo muffler<br />15.9@86mph 2.353 60\'@1600ft<br />400,000km
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