My on-going problem with the oil pressure light HELP

[Matt1.8T]

last year i ran over a piece of exhaust pipe in the road and put a hole in the sump, didn't drive very far then i pulled over AA jobbie to tow me home, anyway got a new sump on and flushed the engine for 5 minutes with clean oil then replaced that with clean oil,

two days later oil pressure light comes on so i take it back to the garage and said it could be the oil pressure switch playing up, so replaced that with no joy and it will go off after 20 minutes of driving, when you get to 1600 revs, next step i was told it could be some sh!t in the pick up pipe, so sump off replaced that, back on still happens,

then i had the oil pressure checked and they said it was ok but maybe a touch under, so replaced the oil pump with the pressure relief valve attached thought it could be that but no it still beeps and flashes at me, replaced the pressure switch again as i thought it could be faulty, i have always used the same oil which it gtx magnatec 15w-40w, could this be the oil or summat like that,

if something was really wrong with it it would of gone bang by now surely, like bearing shells or summat

Help i dont know what else to do

[kniterider]

tough one this...

if youve replaced 2 pressure switches i doubt there both faulty, and as youve change the pump and pick up pipe its very unlikey that these are faulty if genuine vw parts.. only thing i can think of is when you hit/drove with a busted sump a bit of crap has got lodged somewhere.... but i wouldnt have thought this would have got past the oil filter... have you changed the oil filter?? im assuming you have as youve done all the other bits, unless youve fitted a dodgey filter???

[Matt1.8T]

think ive had 2 or 3 oil changes since then and everyone has had a new genuine oil filter, could it be the wrong oil or something else

[topher]

a 15 weight oil might be a bit heavy .. but i wouldnt have thought it made enough of a difference to trigger the oil pressure warning ... get some synta silver from the dealers (unless you can get it cheaper elsewhere) and try that.

[Matt1.8T]

yeah i was told to by that ,i think i will have to get some and give it a try and another filter, going to have to try summat else as its seriously doing my head in now 

[Sugar79]

That oil from the dealers is good stuff and at a good price too..

[Matt1.8T]

i have spoken to my uncle today who is a mechanic and he said it wouldnt be worth while to change the oil as he thinks it will still go off,

now i am not sure weather to buy some or not, he said to phone german swedish & frence (GSF) as see wht they reccomend and say

[Matt1.8T]

bump

came on again yesterday had like 10 psi (if the gauge was correct) as its and aftermarket was, should it be higher, soon as i drop down to 1600 in a high gear or any gear infact it comes on