What's the point??

dzenno · 07-09-2009, 11:31 PM

..of o2 sensor holes on the catless downpipes and exhaust?? Why are the not closed at the bottom... Reason I say this is because I'm running a catless setup but can't/shouldn't run leaded race gas as not to damage these sensors that currently aren't being used for anything (faked out using o2 simms)...

If you ask why leaded, why not unleaded, many times unleaded isn't available where I am...

JayKay335i · 07-09-2009, 11:40 PM

Unleaded is available where most others are.

dzenno · 07-10-2009, 12:06 AM

Quote:

Originally Posted by JayKay335i

Unleaded is available where most others are.

Haha dude, did you not read my post? I said its available but many times I'm there they've run out of it, like yesterday

AWD Addict · 07-10-2009, 09:47 AM

Just run xylene to boost unleaded octane. Leaded is bad for other things besides 02 sensors and cats if used enough.

dzenno · 07-10-2009, 09:50 AM

Quote:

Originally Posted by AWD Addict

Just run xylene to boost unleaded octane. Leaded is bad for other things besides 02 sensors and cats if used enough.

I said I was catless! Absolutely don't use leaded if you have your cats on, you'll damage them severely. I only used leaded, ONLY, because unleaded was unavailable "AND" because I'm running totally catless.

There is nothing that leaded gas can do to your car other than ruin cats if you have them and the O2 sensors...its just more stinky and bad for the environment...

dzenno · 07-10-2009, 08:36 PM

So nothing else affected but cats and o2 sensors , final answer?

brianhn1 · 07-10-2009, 08:56 PM

The ECU depends on the O2 sensors to run.

RiXst3r · 07-10-2009, 08:59 PM

Quote:

Originally Posted by brianhn1

The ECU depends on the O2 sensors to run.

+1 ... the simms just scale the output

Zeph · 07-11-2009, 03:54 PM

I checked with a local airport and they only have low-lead 100 octane. I can't find anywhere else to get high octane gas. I am stuck with 93...

so I can see OP's point about leaded, too bad I can't use leaded with my car.

07-09-2009, 11:31 PM	#1
dzenno Banned 271 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	What's the point?? ..of o2 sensor holes on the catless downpipes and exhaust?? Why are the not closed at the bottom... Reason I say this is because I'm running a catless setup but can't/shouldn't run leaded race gas as not to damage these sensors that currently aren't being used for anything (faked out using o2 simms)... If you ask why leaded, why not unleaded, many times unleaded isn't available where I am...
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07-09-2009, 11:40 PM	#2
JayKay335i Banned 189 Rep 5,046 Posts Drives: ///M323 DCT Join Date: Apr 2009 Location: North Dakota; its best DUHHHHHH iTrader: (1)	Unleaded is available where most others are.
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07-10-2009, 09:47 AM	#4
AWD Addict Chief Executive 300 Rep 2,886 Posts Drives: 2008 335xi 6spd Coupe Join Date: Dec 2007 Location: Boston iTrader: (1) Garage List 2008 335xi [0.00]	Just run xylene to boost unleaded octane. Leaded is bad for other things besides 02 sensors and cats if used enough.
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07-10-2009, 08:36 PM	#6
dzenno Banned 271 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	So nothing else affected but cats and o2 sensors , final answer?
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07-10-2009, 08:56 PM	#7
brianhn1 Slow Mo 15 Rep 534 Posts Drives: BMW Join Date: Jun 2008 Location: US iTrader: (0)	The ECU depends on the O2 sensors to run. __________________ BMW '17 X5 35i, '15 M4, ED 7/1/14, US 8/4/14, PU 8/18/14, '13 X5 35i, '08 335i Motorcycles: BMW '12 R1200GS, '10 F800GS, '74 R90S
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07-11-2009, 03:54 PM	#9
Zeph Major 27 Rep 1,410 Posts Drives: 2008 E92 335i 6MT SGM CR/BD Join Date: Jul 2008 Location: Southeast USA iTrader: (0)	I checked with a local airport and they only have low-lead 100 octane. I can't find anywhere else to get high octane gas. I am stuck with 93... so I can see OP's point about leaded, too bad I can't use leaded with my car.
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