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-   -   glowing red exhaust (https://honda-tech.com/forums/honda-accord-1990-2002-2/glowing-red-exhaust-2652125/)

bryce warburton 09-24-2009 07:38 PM

glowing red exhaust
 
so i did a engine swap cuz my last one was foobared i swaped the same thing in f23. and first my iacv was actn up then it started workn right but my car dies some time and i gotta play with the gas to start so on my way home it died so i could smell hott metal do i looked under the car and my cat was glowing red hot i think it might be clogged what do u think

bigsnorlax 09-24-2009 07:53 PM

Re: glowing red exhaust
 
Just your cat? or the header and all? heat sheild might be in the way to see if the exhaust manifold was glowing, but some one in the past posted somehting similiar and the diagnosis was incorrect valve timing/overlap. ANyone else chime in and help? thats just my guess... just trying to help

bryce warburton 09-24-2009 08:02 PM

Re: glowing red exhaust
 
didnt see headers glowing just cat not down pipe engine has 100k miles on it and never been opend up stock timing belt

bigsnorlax 09-24-2009 08:08 PM

Re: glowing red exhaust
 
Okay just tryin to help and offer an opinion my man. Could be clogged cat as stated, but i fail to rationale how that could cause it to get just that hot.. maybe someone else will chime in and try and help, until then..hope it all works out man

Sketch o5 09-24-2009 08:23 PM

Re: glowing red exhaust
 
yea, it could be clogged. i know that with both of my f23a1 6g's that ive owned, both of their cats went bad right around 100k miles. so that could be your problem...it sounds like it is.

FunnyVictor86 09-24-2009 09:46 PM

Re: glowing red exhaust
 
def. sounds like a clogged cat

EFSedanMan 09-24-2009 10:04 PM

Re: glowing red exhaust
 
yeah dude...get that fixed man...ive seen where the cat gets hot and if driven for a while that hot it can actually catch the carpet on fire. not to mention melt anything close to it.

bseriescrxsi 09-24-2009 10:55 PM

Re: glowing red exhaust
 
cat is clogged...100% sure as ive seen it happen before....figure you cat at normal operation is at temps upward of 1500 degrees...being clogged would turn it red hot n stall the car

90LSpimpin 09-24-2009 11:54 PM

Re: glowing red exhaust
 
touch it. It might just be an optical illusion.

bigsnorlax 09-25-2009 03:38 AM

Re: glowing red exhaust
 

Originally Posted by 90LSpimpin (Post 40076205)
touch it. It might just be an optical illusion.

i lol'ed haha

bryce warburton 09-25-2009 07:08 AM

Re: glowing red exhaust
 
lol ill get my friend to touch it im pretty sure its the cat ill con a friend into towing home it died maybe a 1/4 of a mile from my house lol it killed me so what do u guys think about the strait thru cats

Brad_and_the_acc 09-25-2009 09:50 AM

Re: glowing red exhaust
 
lulz.. Funny shyt.. "touch it".. Anyway.. Yea, replace the cat.. Either OEM or good "quality" high flow.. Shit if your dont care about emissions or there are none in your state. straight pipe..
Get that timing belt done ASAP or you will really be stranded needing a ride home..
:thumbup:

P_Adams 09-25-2009 03:31 PM

Re: glowing red exhaust
 

Originally Posted by bryce warburton (Post 40074303)
so i did a engine swap cuz my last one was foobared i swaped the same thing in f23. and first my iacv was actn up then it started workn right but my car dies some time and i gotta play with the gas to start so on my way home it died so i could smell hott metal do i looked under the car and my cat was glowing red hot i think it might be clogged what do u think

It would appear that you're dealing with a super rich condition which is overworking the catalytic converter. That's why it was glowing. I've seen them light up under a car like a light was on, and I've also seen a dealer loose a car off the carrier when the interior ignited from the heat.
Obviously, this isn't good for the converter. It can tolerate small incursions into these heat ranges, but it most often leads to melted converter elements. (which also leads to clogged converters)
The 'dying" comments could be referring to fouled plugs which would confirm a mixture issue

oblivion2kx 09-25-2009 03:39 PM

Re: glowing red exhaust
 

Originally Posted by P_Adams (Post 40082884)
It would appear that you're dealing with a super rich condition which is overworking the catalytic converter. That's why it was glowing. I've seen them light up under a car like a light was on, and I've also seen a dealer loose a car off the carrier when the interior ignited from the heat.
Obviously, this isn't good for the converter. It can tolerate small incursions into these heat ranges, but it most often leads to melted converter elements. (which also leads to clogged converters)
The 'dying" comments could be referring to fouled plugs which would confirm a mixture issue

x2

odygangster 09-24-2017 10:12 PM

Re: glowing red exhaust
 
2010 odyssey exl shows PO430 Catalyst system below efficiency threshold bank 2 and downpipe glow red after a couple minutes after starting found that the cat is blocked..


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