guys, sorry to post this again, i know its been up here before. i searched the boards and saw a few posts about it, but couldnt find any solutions, just trouble shooting. in any case, my friends lumina(6 banger) has a bad rotten egg smell from the exhaust. its got 150k miles on it, and he hasnt replaced any of the ignition parts yet. i told him to replace the wires, plugs, rotor, cap, and coil to see if it improves. he just got the catalytic converter replaced, i know this is exactly the same problem other people have, i just couldnt find any solutions.. thanks for the help and putting up with a redundant question - josh

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83 Z28--not a pretty site, sold thank goodness

74 Z28-- 383/400, green on black. pretty clean. FOR SALE!!!

"I wish I was a messenger and all the news was good..I wish I was the full moon shining off a Camaro's hood"

 

running rich

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'86 IROC 5-speed
305 LG4
edelbrock performer rpm intake
edelbrock 600 cfm carb
msd pro billet hei distributer
'95 3.23 rearend
hotchkis rear suspension
PST front polygraphite suspension
"speed kills. buy a f@&d, live forever."

 

catelatic converter is clogged. My old car did that and it was the cat.

 

Sounds like catlytic to me.

Later
Mike

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Check out My Car Pics http://albums.photo.epson.com/j/Albu...667&a=13599419

Gran Turismo Americano "The Ultimate Firebird"
Smokin 1989 GTA- Bone stock except for exhaust. (no catalytic-stainless pipe into Flowmaster 2 chamber) & AC Delco Rapid Fire Plugs

 

i believe it is running rich since he hasnt replaced any of the ign. system, but he got a new cat.. so i guess we'll start with the ign. stuff.. thanks

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83 Z28--not a pretty site, sold thank goodness

74 Z28-- 383/400, green on black. pretty clean. FOR SALE!!!

"I wish I was a messenger and all the news was good..I wish I was the full moon shining off a Camaro's hood"

 

only 2 things can make that smell on a car!
1.catolitic converter.
2. Battery is boiling.
SSC