voisin koittaa, miten onnistuu volkkarin lambdan käyttäminen noiden orkkisten sijasta. eli tarkoitus ois koittaa purkaa se liitin niistä viallisista ja liittää tohon volkkarin anturiin
Kuulutus
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No announcement yet.
oisko kellään nurkissa viallisia 2.7t lambda antureita?
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Ainakin Audin koulutusmateriaalissa huomautetaan:
A new generation of probes used in the biturbo for stereo lambda control.
The planar lambda probe is a further development of the finger-type lambda probe
and has a transient response at lambda = 1
Että minkälaisia Volkkarin lambdoja olet sinne sovittelemassa?.
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Hmm, äkkiä luettuna oheisia dokuja niin toimintaperiaatteessa on ratkaiseva ero, perinteinen lambda antaa jänniteviestin suhteessa seokseen kun taas laajakaista (planar?) antaa virtaviestin.
Lainaus:
When the air/fuel mixture is perfectly balanced at 14.7:1 (the stoichiometric ratio and lambda equals 2), the sensor produces no output current. When the air/fuel mixture is rich, the sensor produces a "negative" current that goes from zero to about 2.0 milliamps when lambda is 0.7 and the air/fuel ratio is near 11:1.
When the air/fuel mixture is lean, the sensor produces a "positive" current that goes from zero up to 1.5 milliamps as the mixture becomes almost air.
The Bosch LSU 4 wideband oxygen sensor has a response time of less than 100 milliseconds to changes in the air/fuel mixture, and reaches operating temperature of 700 to 800 degree Centigrade (1,400 degree F) within 20 seconds or less using its internal heater. This is nearly twice the operating temperature of a conventional oxygen sensor.
Ks:
http://www.forparts.com/BoswidebandO2.htm
http://www.forparts.com/BoswidebandO2diag.htm
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