vwbus.no

Var innom mekonomen og bestilte 2 oljetrykksbrytere, og fikk vite at det kun var en type bryter, men at den både gir og sender signal.
Er bryterne for høytrykk og lavtrykk helt like? er forskjellen bare det elektriske signalet?
kan jeg bare erstatte disse med de gamle, og bare stokke om på de, hvis de da er helt like?

Nei, det er to forskjellige... den ene er av typen "normally open" og den andre er "normally closed". i tillegg har de forskjellig verdi (0,3 og 1,2 bar lurer jeg på om det var...) Dette er nok ting det lønner seg å kjøpe orginalt.

Skulle forresten likt å høre hva de mener med "både gir og sender signal"

for 2,1 motorer gjelder følgende:


First of all let us understand how this system works. You have two oil pressure senders which are monitored by a control board located behind your speedometer. One sensor is located in the base of the engine between the push rod tubes. This is called the .3 bar sensor and the plastic part of it should be brown in color. This sensor is for the oil light only (no flashing or buzzer). This is the same sensor that has been used on VWs for the past 30 years. It senses when the oil pressure falls below .3 bar (around 5 psi). At this point the sensor grounds itself and the light comes on. The control board only looks at the input from this sensor when the rpms of the engine are below 2000.



The other sensor is located near the water pump. This is the sensor that causes the oil light to flash and the buzzer to sound. You should see a brown wire going down near your ignition distributor to this sensor. This is called the .9 bar sensor. The control board that monitors the two sensors only looks at this one when the rpms go above 2000. How is works is when oil pressure is above .9 bar (aprox 13.23 psi) the switch inside the sensor is closed. This grounds the sensor and this keeps the light off. It works the opposite of the .3 bar switch which comes on when it is grounded. As you rev the engine above 2000 rpm the control board looks at this switch to see if it is still grounded. If it is the oil light and buzzer stay off. If the pressure goes below .9 bar while the engine is above 2000 rpms then the switch inside the sensor opens (pressure holds it shut) and the buzzer and flashing light start.



http://www.vanagain.com/buzzer2.htm

OddN wrote:Nei, det er to forskjellige... den ene er av typen "normally open" og den andre er "normally closed". i tillegg har de forskjellig verdi (0,3 og 1,2 bar lurer jeg på om det var...) Dette er nok ting det lønner seg å kjøpe orginalt.

Skulle forresten likt å høre hva de mener med "både gir og sender signal"

ok, da tror jeg at jeg bestiller på vw..

ducce999s wrote:for 2,1 motorer gjelder følgende:


First of all let us understand how this system works. You have two oil pressure senders which are monitored by a control board located behind your speedometer. One sensor is located in the base of the engine between the push rod tubes. This is called the .3 bar sensor and the plastic part of it should be brown in color. This sensor is for the oil light only (no flashing or buzzer). This is the same sensor that has been used on VWs for the past 30 years. It senses when the oil pressure falls below .3 bar (around 5 psi). At this point the sensor grounds itself and the light comes on. The control board only looks at the input from this sensor when the rpms of the engine are below 2000.



The other sensor is located near the water pump. This is the sensor that causes the oil light to flash and the buzzer to sound. You should see a brown wire going down near your ignition distributor to this sensor. This is called the .9 bar sensor. The control board that monitors the two sensors only looks at this one when the rpms go above 2000. How is works is when oil pressure is above .9 bar (aprox 13.23 psi) the switch inside the sensor is closed. This grounds the sensor and this keeps the light off. It works the opposite of the .3 bar switch which comes on when it is grounded. As you rev the engine above 2000 rpm the control board looks at this switch to see if it is still grounded. If it is the oil light and buzzer stay off. If the pressure goes below .9 bar while the engine is above 2000 rpms then the switch inside the sensor opens (pressure holds it shut) and the buzzer and flashing light start.



http://www.vanagain.com/buzzer2.htm

Takk for utfyllende info, men dette gjelder 1.6TD...