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Location:
Finland
Registered:
June 2002
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Re: Positioning of O2 Sensor
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Tue, 24 September 2002 09:50
 
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Just out of curiosity; how is emission test conducted in Australia?
Over here sensor is just rammed into tailpipe and engine will be let to idle while readings are taken.
That goes for petrol engines, whereas diesels get a different treatment. Diesels are romped once to redline, and soot (plus some other crap) is read from probe. If that one measurement exceeded allowed limits, then they'll romp it some more and take an average reading.
It's not uncommon to see diesel owners to make adjustments to fuel delivery pump before test - be it either lowering fuel metering or limiting top rpm.
Nevertheless neither of those (petrol & diesel) emission tests simulate real driving conditions. Are petrol cars run at tickover? Is it usual to redline your diesel on daily basis?
When these tests were adobted here in the late -90's, they broke pretty many diesel engines. Nowdays they ram a probe to also measure engine coolant temp - to verify later that diesel engine was up to normal operating temperature in case it breaks down during test.
So, how is test done in Oz ?
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Reference, emission limits.
---------------------------CO(%)---HC(ppm)---lambd a
--
car reg before 1986 - 4,5------1000
car reg after 1986 --- 3,5-------600
so called low emission
cars (w. catalysator) - 0,5------100--------1(+/-0,03)
[Updated on: Tue, 24 September 2002 09:54]
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| | Subject | Poster | Date |
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Positioning of O2 Sensor
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Sam | Sun, 22 September 2002 21:11 |
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Re: Positioning of O2 Sensor
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E30-323ti | Sun, 22 September 2002 22:24 |
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Re: Positioning of O2 Sensor
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BigWorm | Mon, 23 September 2002 09:02 |
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Re: Positioning of O2 Sensor
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Sam | Mon, 23 September 2002 21:15 |
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Re: Positioning of O2 Sensor
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E30-323ti | Mon, 23 September 2002 20:40 |
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Re: Positioning of O2 Sensor
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Ben Wilson | Mon, 23 September 2002 22:24 |
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Re: Positioning of O2 Sensor
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E30-323ti | Tue, 24 September 2002 03:39 |
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Re: Positioning of O2 Sensor
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jazae86 | Tue, 24 September 2002 07:26 |
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Re: Positioning of O2 Sensor
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5KinKP60 | Tue, 24 September 2002 09:50 |
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Re: Positioning of O2 Sensor
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rob_RA40 | Tue, 24 September 2002 10:07 |
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Re: Positioning of O2 Sensor
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jazae86 | Tue, 24 September 2002 15:51 |
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Re: Positioning of O2 Sensor
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BigWorm | Wed, 25 September 2002 10:20 |
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Re: Positioning of O2 Sensor
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jazae86 | Wed, 25 September 2002 10:34 |
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Re: Positioning of O2 Sensor
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BigWorm | Wed, 25 September 2002 10:56 |
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Re: Positioning of O2 Sensor
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Sam | Thu, 26 September 2002 03:32 |
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Re: Positioning of O2 Sensor
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5KinKP60 | Thu, 26 September 2002 08:32 |
