 » Site Navigation | | | | » Recent Threads | | | |  |  |  |  12-29-2004, 09:37 PM | #1 | | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 |  car spewed out molten metal last night
Last night I was heading to work and my car started cutting out, and I looked behind me and it had litteraly shot out of the exhaust some molten pieces of crap it was dark so it looked like a fireworks display. I pulled over and the entire cat and behind it was red hot. I took some pics but it had time to cool down before I could get some. After further investigation I found that my post-cat O2
sensor had been unplugged . Could that have done it? |  |  | | 12-30-2004, 12:28 AM | #2 | | Senior Member Join Date: Jun 2003 Location: Tucson, AZ Posts: 290 |
From the sounds of it, the substrate in the cat melted down. A big, nasty, constant misfire (one that just POURS gas down the exhaust) could do that. Maybe an unplugged O2 sensor could do that too... I would think the check engine light would be going berzerk though. The crap in the cat pretty much burns unused fuel. If there's too much fuel, it can overheat. It also does other stuff like reduce NOx emissions, but the big thing is the unburned fuel (hydrocarbon) emissions. How many miles do you have? Maybe you can get it warrantied. __________________
Vince Carknard
1995 318ti Active
Hellrot, 16" 5 spoke, "Fogged" airbox mod, Stromung exhaust, Bilstein Sports, BMW sport springs, 3.73lsd,
others... | | | | | 12-30-2004, 01:51 AM | #3 | | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 |
I have 133,000 | | | | | 01-31-2005, 09:19 PM | #4 | | Junior Member Join Date: Feb 2004 Posts: 27 |
hotness __________________
if its not a bimmer, why bother driving it!! | | | | | 01-31-2005, 09:59 PM | #5 | | Senior Member Join Date: Jan 2005 Location: Hilliard, Ohio Posts: 122 |
The second o2 sensor doesn't effect the mixture at all, it's only there to monitor the effectiveness of the cat. It's suprizing that you didn't throw a CEL for the second o2 sensor being disconnected previously though. | | | | | 02-01-2005, 03:10 AM | #6 | | Senior Member Join Date: Dec 2004 Location: Colyumbia S.C. Posts: 101 |
someone may have taken the bulb out for the CEL, dealer trick. Or it may be burned out. as 95 said, the rears only function is to monitor the Post cat emissions. You may now have most of the cat stopping up the rest of the exhaust. | | | | | 02-01-2005, 03:24 PM | #7 | | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 |
Quote: | Originally Posted by bimmer95 The second o2 sensor doesn't effect the mixture at all, it's only there to monitor the effectiveness of the cat. It's suprizing that you didn't throw a CEL for the second o2 sensor being disconnected previously though. | I can't believe you have never posted on here before. | | | | | 02-01-2005, 03:31 PM | #8 | | Senior Member Join Date: Jan 2005 Location: Hilliard, Ohio Posts: 122 |
Quote: | Originally Posted by hotdog19d I can't believe you have never posted on here before. | Never made it over here until yesterday  | | | | | 02-01-2005, 07:40 PM | #9 | | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 |
Quote: | Originally Posted by bimmer95 Never made it over here until yesterday | Well it is about #$#^# time!  I think we are developing a nice little community. Away from BMW elitists!  __________________ ...steven
BMW CCA #146825
1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i
www.bmwcca.org
| | | | | 02-01-2005, 08:52 PM | #10 | | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 |
Quote: | Originally Posted by 1996 328ti Away from BMW elitists! | Watch it Steven he still has an M3 as well.  | | | | | 02-02-2005, 02:08 AM | #11 | | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 |
He is an enthusiast. Not elitist.
I find with some people there is a pecking order in 3 Series owners.
M3--> 325/328--> 318--> 318ti
You can see it whenever someone posts a message about a ti on anyother board. __________________ ...steven
BMW CCA #146825
1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i
www.bmwcca.org
| | | | | 02-02-2005, 02:49 AM | #12 | | Senior Member Join Date: Jan 2005 Location: Hilliard, Ohio Posts: 122 |
You're right Steven, those guys drive me nuts. They never factor in the usefulness of the hatchback and how light the chassis is. Even stock a 5-speed 318ti will give a 325 a run... SCed they're no match | | | | | 02-02-2005, 04:02 AM | #13 | | Senior Member Join Date: Dec 2004 Location: Long Beach area Posts: 1,189 |
Seriously, it seems like everybody looks down on the ti  I don't get it, our cars are practically a Z3 with a different body shell...isn't it? and yeah...Z3s are cool too haha. Hey Bimmer95 I've seen your posts on other forums, aren't you from understeer.com or something? __________________ 97 Jet Black 318ti Sport. Not so stock anymore!.... 
Now Featuring:318ti.org sticker  Now featuring: Hartge exhaust|Blacked out Grilles|Front Clear Corners or Ambers depending on how I feel|325is vented front brakes|Bilstein Sports|H&R Sports|E46 RSMs w/ Z3 reinforcment plates|16" Style 45s|17" E46 M68 rims|18" Authentic Hartge Classics C|OEM M135 ZHP wheels
and
99 Titan Silver 323is Dinan S1+few more mods
Coming sometime in the future:...SCed 2.1...new (to me) car mod maybe?...all in one car | | | | | 02-02-2005, 04:06 AM | #14 | | Senior Member Join Date: Jan 2005 Location: Hilliard, Ohio Posts: 122 |
Quote: | Originally Posted by lkwd318ti I don't get it, our cars are practically a Z3 with a different body shell...isn't it? | Or an E30 M3 with a different body.... and less HP... no one complains about the "horrible" rear suspension on them. Quote: | Originally Posted by lkwd318ti Hey Bimmer95 I've seen your posts on other forums, aren't you from understeer.com or something? | Yup, that's my site. | | | | |
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