LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

i got a question please helpp somone

Old 05-16-08, 10:30 PM
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96ls400ky
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Default i got a question please helpp somone

k i got a 96 ls400 and whenever i start it it would run and the engine sounds nice no problems but my catalytic converters like 2 inches in the front turn red like fire red and idk wat to do i did take them off to see but it still does it any one know what could be the problem
Old 05-16-08, 10:39 PM
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1995LS400
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Id wait for Puredrifter or 1SICKLEX to respond, but Ill give it a try. I would say that they are fouled or plugged somewhere's.
Old 05-16-08, 10:42 PM
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I just Googled it. Running too rich for some reason causes overheating in the cat.
Old 05-16-08, 10:53 PM
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96ls400ky
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thanks for the quick reply guys
idk whats wrong with it the engine runs smooth just that it gets hot by them converters i will wait for 1sicklex and puredrifter to respond they mite know
thanks again guys
Old 05-16-08, 11:07 PM
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cdtran6273
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I had a friend with the exact problem on his Geo Prizm. It was running too rich. A new set of spark plugs fixed the problem.
Old 05-16-08, 11:13 PM
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trukn1
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The Cats are clogged and cant filter the exhaust properly. Just need to replace them.
Old 05-16-08, 11:15 PM
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96ls400ky
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hopefully thats the problem i will get the spark plugs replaced tom
is the iridium spark plugs good anyone try them
Old 05-16-08, 11:41 PM
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PureDrifter
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check the plugs and ignitors.
Old 05-17-08, 07:59 PM
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96ls400ky
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well i changed the spark plugs and the igniters and its fixed it runs beautyful
thank you guys i really appriciate it
also anyone knoe where i can get some good lookin wald duchatelet wheels for not alot of money
Old 05-17-08, 10:56 PM
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PureDrifter
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rbwheels had a set a while back, what size you want? im trying to unload a set of 18" HRE mesh wheels
Old 05-18-08, 06:19 PM
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96ls400ky
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i would like some 19 wald rims
hre would look good but i like the wald rims moree
Old 05-24-08, 01:23 PM
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Bill Dowd
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Originally Posted by 96ls400ky
hopefully thats the problem i will get the spark plugs replaced tom
is the iridium spark plugs good anyone try them
YES I JUST PUT THEM IN A 91 LS400 AND THEY WORK JUST FINE
Old 05-24-08, 07:25 PM
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SH212
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Originally Posted by PureDrifter
rbwheels had a set a while back, what size you want? im trying to unload a set of 18" HRE mesh wheels

let me know whats up with those rims...
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