W211 AMG Discuss the W211 AMG's such as the E55 and the E63

really rich smelling exhaust...

Old Oct 3, 2012 | 11:29 AM
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2005 E55 AMG
really rich smelling exhaust...

ugh, no CEL but what PID can I use to check for maybe a dying O2 sensor?
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Old Oct 3, 2012 | 12:26 PM
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oh - and it's definitely from the tailpipes, not inside the car in case anyone was thinking
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Old Oct 3, 2012 | 02:07 PM
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Toadie... is is just when you start the car up? or all the time driving?
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Old Oct 3, 2012 | 04:09 PM
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Do you have the stock exhaust on the car, and is it directly after a pull?
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Old Oct 3, 2012 | 04:22 PM
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From: Folsom, CA
2005 E55 AMG
Originally Posted by theunderlord
Toadie... is is just when you start the car up? or all the time driving?
just driving around town, did about 3 hours of just stop-go yesterday and the gas smell was strong enough to peel back your eyelids...

Originally Posted by BI-Performance
Do you have the stock exhaust on the car, and is it directly after a pull?
removed the resonator, that's it... no pulls, just idling at 100F temps outside - and some street driving maybe to 45mph...

the car needs a good romp
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Old Oct 3, 2012 | 04:24 PM
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Originally Posted by Toadster
just driving around town, did about 3 hours of just stop-go yesterday and the gas smell was strong enough to peel back your eyelids...



removed the resonator, that's it... no pulls, just idling at 100F temps outside - and some street driving maybe to 45mph...

the car needs a good romp
I agree...


Hand the keys over to me...
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Old Oct 3, 2012 | 04:26 PM
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Originally Posted by justinwrock
I agree...


Hand the keys over to me...
LOL yes, being on vacation and picking up kids from school is a travesty... poor car just wants to stretch it's legs!

I have an appt to drop it off tonight - don't want a nuked cat
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Old Oct 3, 2012 | 06:42 PM
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Gone but not Forgotten 2006 E55 Renntech
Hopefully it is not from Drivers side rear wheel well (exterior)?
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Old Oct 3, 2012 | 06:45 PM
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Originally Posted by Ronan Mc Cabe
Hopefully it is not from Drivers side rear wheel well (exterior)?
I see what you did there.
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Old Oct 3, 2012 | 09:11 PM
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My car with no cats wreaks horribly. What do the inside of the resonators look like? I was assuming they were either empty or had a couple large chambers.
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Old Oct 3, 2012 | 09:40 PM
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From: Folsom, CA
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took it in and my SA was great, no codes - but threw it on the computer and ran the basic tests - no codes, ran the O2 efficiency tests and they're within range - he said it's probably a bad tank of gas and to go take it for a good drive LOL love that guy!

what's that good fuel cleaner - not Techron, it's one that breaks the deposits into flakes and cleans out the combustion chamber...
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Old Oct 3, 2012 | 10:00 PM
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i think it's Redline SI-1 - anyone try this stuff?
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Old Oct 3, 2012 | 11:56 PM
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06 E55, 03FORD P/S,01 E320-4M,99 ML320,O4 E55,05 RUBICON UNLIMITED,
Go out and drive for 20 minutes on the freeway in 2nd gear,constant/steady high rpm's. your problem will be solved. The cats are loaded up with fuel, super heat them by driving the car like that and you'll be good.
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Old Oct 4, 2012 | 08:31 AM
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one car at a time
Log your AFRs - that is how you tell if your car is running rich....If you don't have a wideband, take the car to a smog shop and ask them to put the car on the rollers and put the sniffer in the tailpipe - you will know soon enough if you are running too rich. That said, if you are smelling fuel, you likely have the fuel tank / sending unit leak that is so common on these POS (sorry I mean gems of cars).
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Old Oct 4, 2012 | 12:19 PM
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From: Folsom, CA
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Originally Posted by MBTEK
Go out and drive for 20 minutes on the freeway in 2nd gear,constant/steady high rpm's. your problem will be solved. The cats are loaded up with fuel, super heat them by driving the car like that and you'll be good.
that sounds like what my SA said - I took it for a few good runs last night, not noticing it now...

Originally Posted by cij911
Log your AFRs - that is how you tell if your car is running rich....If you don't have a wideband, take the car to a smog shop and ask them to put the car on the rollers and put the sniffer in the tailpipe - you will know soon enough if you are running too rich. That said, if you are smelling fuel, you likely have the fuel tank / sending unit leak that is so common on these POS (sorry I mean gems of cars).
I should get a wideband installed... would be good to monitor AFRs. like stated above, the car doesn't stink now after a few good romps
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