been having problems with an oil pressure fault for some time now on my mk1 octavia vrs, fault will only show when oil is at normal operating temperature and the revs are between 1500 and 2000 rpm.  after some research i started by checking the strainer removed cleaned was as new no dirt what so ever so decided to change the oil pump as no fault was reading when plugged up. run the car again let it warm up as usual all seemed well untill pulling away from traffic lights hit the rev range and 'beep beep beep' oil light on again.  has anyone had this before as i am really lost as for what i should do next

 

cheers

Pressure sensor?

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not sure after speaking to some mechanics today they said that if it was the sensor it would show when a code reader is attached so i'm not sure

If the sensor is giving a stupid reading or open circuit then yes, but if it is giving the wrong reading in the right range then not necessarily.

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There are a few engine sensors that only cause the ECU to throw a code if they go open circuit or intermittent. I agree with trundlenut, a new oil pressure sensor would be my first thing to do.

ok thanks mate any idea how i can chek this as i dont want to be using the car and risk damage to the top end

Just fit a new one.

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There are a few engine sensors that only cause the ECU to throw a code if they go open circuit or intermittent. I agree with trundlenut, a new oil pressure sensor would be my first thing to do.

ok any idea in the location of the pressure sensor, i think its at the back of the engine up near the turbo but not 100% sure

No idea, sorry.

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ok cheers mate ill search through the forum and see if i can find any images/details of its location

I believe it is on the housing that the oil filter screws on to

thanks i located it and have changed it today still got the fault coming up getting really p***ed off with it now as apart from the fault car drives really nice and has huge potential, does anyone have any other suggestions of where i can go with it now any help would be really appreciated

Checking the wiring back from the sensor is probably the next step.

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Ok thanks taking I for a oil pressure check today also just to make sure that the pressure is fine

What colour is the light that comes on?

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It's the red oil light

Are you sure it's pressure related?

Try swapping out the oil level sensor?

Are you sure it's pressure related?

Try swapping out the oil level sensor?

Red light is pressure rather than level.

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Thought they were the same colour. My bad

Oil pick up pipe blocked mine was doin the same thing all oil light probs went away after changing pick up

Oil pick up pipe blocked mine was doin the same thing all oil light probs went away after changing pick up

This was the first thing OP checked. See his first post.

Although seems he cleaned it and not replaced it.

If it were me I would of replaced it.

Perhaps there is a blockage somewhere else. I would flush engine. Remove sump replace pick up pipe with new. Fill up with fully synthetic oil and fingers crossed.

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Uh I cleaned mine out fist time but it's hard to get to edges of the strainer I got anouther oil pressure warning 2 weeks down the line I replaced with new only bout a tenner with o ring not had a prob since other than that if sencer has been replaced maybe oil pump?

That's exactly what I did flush engine cleaned out rocker cover new strainer and o ring new filter and Mobil 1 5w30 and all is well

Uh I cleaned mine out fist time but it's hard to get to edges of the strainer I got anouther oil pressure warning 2 weeks down the line I replaced with new only bout a tenner with o ring not had a prob since other than that if sencer has been replaced maybe oil pump?

 

That is my point buddy it is so uneconomical to clean a blocked oil strainer / pick up wen they are £10 and you ca't guarantee you have really cleaned all the crud out internally and then end up back with light on and a sump off job again..

Any slight blockage is enough to cause flow issues as the pipe and hoses are thin.

 

Do it once and do it right

 

That's exactly what I did flush engine cleaned out rocker cover new strainer and o ring new filter and Mobil 1 5w30 and all is well

 

Nice one, it pays to do it right..

Interesting to see the outcome of this keep informed of results