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Question for the engine guru's



Check your voltage to make sure you aren't losing the Alt below 3k.

Check oil level.

Oil pump going bad may provide insufficient pressure until revs are up to 3k, but as Allyn said, that should only turn on the light above 2k.  



The 1.4bar pressure sensor that turns on at 2k will stay on when revs are below 2k regardless of what it reads.  I'll try to explain that better.  When the revs hit 2k, and the 1.4bar sensor doesn't see enough pressure, the light goes on.  The light will remain on until it sees >2k and enough pressure.  So the test is to keep revs below 2k and see if the light still comes on, or hook a test light/meter to the oil pressure sensor.  Potterman sells the sensor for my Passat (prolly same one) for $5.



BH









 --- On Thu 08/04, Allyn < amalventano1@tds.net > wrote:

From: Allyn [mailto: amalventano1@tds.net]

To: rogercv1@gmail.com, scirocco-l@scirocco.org

Date: Thu, 4 Aug 2005 00:09:09 -0400

Subject: RE: Question for the engine guru's



If the light is on below 2000 RPM, it could be an actual oil pressure issue.<br>There are 2 sensors. One is 'dynamic', and only trips above 2k RPM. The<br>other is full time, and is set to a lower trip pressure. If you are getting<br>the light anywhere <3000 and also <2000, you are either tripping both<br>sensors, or the full time sensor is on its way out, or as stated initially -<br>you could have a real problem.<br>HTH<br>Al<br><br>> -----Original Message-----<br>> From: scirocco-l-bounces+amalventano1=tds.net@scirocco.org<br>> [mailto:scirocco-l-bounces+amalventano1=tds.net@scirocco.org] On Behalf Of<br>> Roger concha<br>> Sent: Wednesday, August 03, 2005 12:04 AM<br>> To: Scirocco list<br>> Subject: Question for the engine guru's<br>> <br>> 88 16V with about 160K on the motor.<br>> lately after highway driving or city driving once the temp on the car<br>> comes to normal the oil light will come on once I drop below 3K rpms<br>> and will turn off once back over 3K not just 
driving rpm's I can just<br>> tap the throttle to get it over 3K and it will stop.<br>> <br>> there is enough oil in the car.<br>> <br>> so I am stumped.<br>> <br>> any Ideas.<br>> <br>> thanks<br>> Rog<br>> <br>> _______________________________________________<br>> Scirocco-l mailing list<br>> Scirocco-l@scirocco.org<br>> http://neubayern.net/mailman/listinfo/scirocco-l<br><br><br>_______________________________________________<br>Scirocco-l mailing list<br>Scirocco-l@scirocco.org<br>http://neubayern.net/mailman/listinfo/scirocco-l<br>

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