im scared and need some tipe of answer

Q&A regarding engines, turbos, and intercoolers and power upgrades

im scared and need some tipe of answer

Postby 3SGTEWRC » Wed Sep 08, 2004 1:07 am

last night i removed the o2 sensor (the one located in the factory cat) an the sensor is white is this normal? that does it mean? whould i be scared :shrug: ?
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Postby turbo4wd » Wed Sep 08, 2004 1:18 am

just replace it.. 8)
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Postby Griffin » Wed Sep 08, 2004 3:54 pm

yeah its normal if you live in Cali - something they put in the gas causes white deposits in the exhaust - probably unrefined sulphur.
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Postby edv-tek » Thu Sep 09, 2004 10:55 pm

Say is it true that you guys out in Cali have to live with 91 octane. Say it isn't so :cry: .
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Postby Griffin » Thu Sep 09, 2004 11:06 pm

edv-tek wrote:Say is it true that you guys out in Cali have to live with 91 octane. Say it isn't so :cry: .


Yup state regulation. Mind you you can still go and get 100 or 103 at the race shop, but we basically have to run the 91 horse piss for day to day use.
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Postby busdriver » Fri Sep 10, 2004 4:39 am

I have the same stuff here in MT, you get to choose between 85.5, 88, and 91. Yay! Lucky us!! :x
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Postby Rick89GTS » Fri Sep 10, 2004 6:08 am

Here in BC, Canada, we have up to 94 octane but it's fuckin' expensive, averaging about C$3.60 or US$2.75 per gallon :shoots:
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Postby edv-tek » Mon Sep 13, 2004 7:45 pm

94 octane for about $2/gallon or 100 unleaded for $4.20/gallon 'round here
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Postby gearhead313 » Mon Sep 13, 2004 8:16 pm

white deposits can sometimes mean some coolant going through the exhaust.....not good
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Postby MrWOT » Tue Sep 14, 2004 2:40 am

If it was coolant the ECU would throw a code. Getting either coolant or any kind of silicate on an O2 sensor will ruin it instantly. If you want to test that, get an old O2 sensor, clamp it in a vice with a voltmeter attatched, then heat it up with a blow torch and test it (normal readings are 0.1V - 0.8V), then spray it with coolant/or coolant smoke, it will either put way WAY lower voltages (0.07 or lower) or will stop completely. This is one reason you never want to use silicate adhesives on your manifold or head gasket, even the slightest ammount will cost you an O2 sensor if it gets in the intake exhaust tract :D

(edit sp)
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Postby Indy3sgte » Tue Sep 14, 2004 8:48 pm

okay mine is white too :cry: where do I get a new one? Am I okay if no code is being thrown?

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Postby alltracman78 » Tue Sep 14, 2004 10:15 pm

you are proably good. Depending on mileage, won't hurt to replace. You can get at dealership (best) or go to auto store, get 4 wire, and wire into yours.
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Postby gearhead313 » Wed Sep 15, 2004 12:47 pm

MrWOT wrote:If it was coolant the ECU would throw a code. Getting either coolant or any kind of silicate on an O2 sensor will ruin it instantly. If you want to test that, get an old O2 sensor, clamp it in a vice with a voltmeter attatched, then heat it up with a blow torch and test it (normal readings are 0.1V - 0.8V), then spray it with coolant/or coolant smoke, it will either put way WAY lower voltages (0.07 or lower) or will stop completely. This is one reason you never want to use silicate adhesives on your manifold or head gasket, even the slightest ammount will cost you an O2 sensor if it gets in the intake exhaust tract :D

(edit sp)


i'd agree if it started dumping coolant through the motor, but i've had ones where water would just start seeping out from somewhere, not causing total meltdown, but enough to lean it out and cause this condition.

.....or, boost makes heat. could be just from the lil bugger getting hot from high egt's.
ST165 counter:
#2597 - fail
#3193 - fail
#xxxx - sold
#4598 - sold to Canada eh
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Postby Indy3sgte » Sat Sep 18, 2004 1:28 pm

If you want to test that, get an old O2 sensor, clamp it in a vice with a voltmeter attatched, then heat it up with a blow torch and test it (normal readings are 0.1V - 0.8V)

Should I test mine this way? where I put the voltmeter?

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