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Exhaust Question #293975 Oct 7, 1:07pm Oct 7, 1:07pm
Joined: Jan 2004
Posts: 130
san antonio tx
adrian OP
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2002 Toyota Celica GT
adrian OP
Member
2002 Toyota Celica GT

Joined: Jan 2004
Posts: 130
san antonio tx
Exhaust Question
Ive have a universal muffler with 2.5 pipe from the cat to the muffler. I have had it for about 6 months. It sounds great. Really loud!!! But recently when i let off on the gas, or barley tap on the gas, and every now and then in between 1-2 shift, the exhuast backfires or makes a poping noise. All this only happens at low speeds. It still sounds really loud and deep, but its embarrising when this happens. Do you think it is the muffer, welding, or the piping??? Any info would be great.

Re: Exhaust Question [Re: adrian] #293976 Oct 7, 1:39pm Oct 7, 1:39pm
Joined: Dec 2003
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towson, md
2003 blue Toyota Celica
ragingpaseo
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ragingpaseo
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towson, md
i have this happen to my TRD muffler, checked your gasket yet???

Re: Exhaust Question [Re: ragingpaseo] #293977 Oct 7, 2:00pm Oct 7, 2:00pm
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Posts: 744
Freehold, NJ
2000 Spectra Blue Mica Toyota Celica
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2000 Spectra Blue Mica Toyota Celica
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2000 Toyota Celica

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Posts: 744
Freehold, NJ
It has nothing to do with the integrity of the exhaust system. It's being caused by unburnt fuel passing through the engine and being ignited in the exhaust system. Most of the time mufflers cancel out this sound. Do you have any CELs or any problems with your car? Try resetting the ECU and see if the sound goes away.

Re: Exhaust Question [Re: Blue_Bomber] #293978 Oct 7, 2:11pm Oct 7, 2:11pm
Joined: Sep 2003
Posts: 286
Houston, TX.
2001 Black Toyota Celica GT
Psquared
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2001 Toyota Celica GT
Psquared
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Houston, TX.
Hmmm just a guess but if it's un-burnt gas, maybe your catalitic convertor is shitting out. It's supposed to burn off extra gases and stuff. Just a guess though...

Re: Exhaust Question [Re: Psquared] #293979 Oct 7, 3:10pm Oct 7, 3:10pm
Joined: Jan 2004
Posts: 130
san antonio tx
adrian OP
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2002 Toyota Celica GT
adrian OP
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2002 Toyota Celica GT

Joined: Jan 2004
Posts: 130
san antonio tx
thanks, i have no cel but will try to reset the ecu

Re: Exhaust Question [Re: adrian] #293980 Oct 8, 7:06am Oct 8, 7:06am
Joined: Jan 2004
Posts: 130
san antonio tx
adrian OP
Member
2002 Toyota Celica GT
adrian OP
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2002 Toyota Celica GT

Joined: Jan 2004
Posts: 130
san antonio tx
i reset the ECU and the problem remains the same. any other suggestions??

Re: Exhaust Question [Re: Psquared] #293981 Oct 8, 7:13am Oct 8, 7:13am
Joined: Dec 2003
Posts: 2,672
towson, md
2003 blue Toyota Celica
ragingpaseo
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2003 Toyota Celica
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2003 Toyota Celica

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towson, md
Originally Posted by Psquared
Hmmm just a guess but if it's un-burnt gas, maybe your catalitic convertor is shitting out. It's supposed to burn off extra gases and stuff. Just a guess though...

nah, he has a 02' and i've a 03', i doubt it...

Re: Exhaust Question [Re: ragingpaseo] #293982 Oct 8, 7:48am Oct 8, 7:48am
Joined: Sep 2004
Posts: 412
Ft. Laud. FL/FSU Tallahassee
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i thought the cat only takes out the CO?


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