A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Oil pressure sensor?

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Old Jan 19, 2009 | 01:40 PM
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slow_N_lowe's Avatar
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Default Oil pressure sensor?

The warning indicator for the oil pressure sensor (yellow) recently came up on the display. The oil was changed (castrol SLX)and a few days later the sensor was replaced, but the warning light is still on. The old oil showed no signs of sludge and the engine has been running normal. Any ideas on what I should check next?
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Old Jan 21, 2009 | 05:34 PM
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Default check the wires leading to the sensor

mine were broken and the sensor was functioning fine. Also if you have a vag clear the codes. Mine took a few days to eventually clear
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Old Jan 21, 2009 | 06:05 PM
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Default The wires looked ok when I changed out the sensor...and a scan from

Autozone reveiled no codes. I don't have access to a vag, but I figured that Autozone could at least see if a code was being logged. Did you have to ohm out the sensor wires or was the break easily seen? On a side note, the warning light does not show up until the engine is up to temp and then it will come and go throught out the drive.
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Old Jan 21, 2009 | 07:07 PM
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Default in my case pretty obvious break so no I didn't need a volt meter.

sorry, can't be of any more help. Not sure why it only comes on after engine is warmed up...
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