Oil Sending unit

[moosey]

Can a faulty oil sending unit cause the RED Oil can display Engine oil pressure too low? Had this problem dealer said it was AOS, replaced and after 5000k it came back. At idle the oil pressure needle bounces up and down between 1-2  and at 3000 rpm needle stays at 2-2.5 but nothing higher. No oil leaks, oil level is perfect and dealer just replaced AOS. No strange sounds from engine , changed oil and it looked clean no metal bits s some suggested to check. 02 Carrera 220K on odometer, all service updated.

[JFP in PA]

Can a faulty oil sending unit cause the RED Oil can display Engine oil pressure too low? Had this problem dealer said it was AOS, replaced and after 5000k it came back. At idle the oil pressure needle bounces up and down between 1-2  and at 3000 rpm needle stays at 2-2.5 but nothing higher. No oil leaks, oil level is perfect and dealer just replaced AOS. No strange sounds from engine , changed oil and it looked clean no metal bits s some suggested to check. 02 Carrera 220K on odometer, all service updated.

 

The sensor could be going south.  What oil are you running in the engine?

[moosey]

 

Can a faulty oil sending unit cause the RED Oil can display Engine oil pressure too low? Had this problem dealer said it was AOS, replaced and after 5000k it came back. At idle the oil pressure needle bounces up and down between 1-2  and at 3000 rpm needle stays at 2-2.5 but nothing higher. No oil leaks, oil level is perfect and dealer just replaced AOS. No strange sounds from engine , changed oil and it looked clean no metal bits s some suggested to check. 02 Carrera 220K on odometer, all service updated.

 

The sensor could be going south.  What oil are you running in the engine?

 

0w-40

[JFP in PA]

Considering the milage on the car, I would try a higher weight oil.  You did not say what climate you are in, but if it is seasonal, I would go with a 5W-40 from Castrol or Joe Gibbs; if you live in an area that is warm, I would consider a similar 10W-40.

[moosey]

Considering the milage on the car, I would try a higher weight oil.  You did not say what climate you are in, but if it is seasonal, I would go with a 5W-40 from Castrol or Joe Gibbs; if you live in an area that is warm, I would consider a similar 10W-40.

Thanks JFP, out in the desert rancho mirage 85-112 daily

[JFP in PA]

 

Considering the milage on the car, I would try a higher weight oil.  You did not say what climate you are in, but if it is seasonal, I would go with a 5W-40 from Castrol or Joe Gibbs; if you live in an area that is warm, I would consider a similar 10W-40.

Thanks JFP, out in the desert rancho mirage 85-112 daily

 

 

Then definitely go to a 10W-40, like Castrol Edge with Syntec Technology; I'll bet you see a change in your oil pressure right away.

[KevinH90]

I added a 996 oil pressure sensor to my 2000 986 Boxster when I installed a Carrera gauge cluster.  The first unit I installed worked fine for about 2 years and then started to give erratic readings.  I replaced the sensor and it worked fine for about two weeks.  Now I'm getting erratic readings again.

 

Is something causing the sensors to fail or is it just bad luck that I bought a replacement sensor that failed prematurely?  I've done some searches and it appears that these are a known weakness in the 996's. 

[JFP in PA]

I added a 996 oil pressure sensor to my 2000 986 Boxster when I installed a Carrera gauge cluster.  The first unit I installed worked fine for about 2 years and then started to give erratic readings.  I replaced the sensor and it worked fine for about two weeks.  Now I'm getting erratic readings again.

 

Is something causing the sensors to fail or is it just bad luck that I bought a replacement sensor that failed prematurely?  I've done some searches and it appears that these are a known weakness in the 996's. 

 

I don't know if it is anything in the sensor design, as some seem to go on forever and others only last a limited time.  I do know we have had better luck with the factory units than with after market.