Recently on my 2000 audi a4 1.8t my low oil pressure light starts to come on after about 40 minutes of driving. It comes on for about a minute or two, then goes off for a few minutes, then back on again, and so on. I have the correct amount of oil in my car so I was wondering I am starting to loose oil pressure after about 40 minutes of driving or if it is a faulty light? Also around the same time my car had started to drive choppy, like its misfiring after I apply a certain amount of acceleration. It feels like a spark plug is out, but I took them all out and they appeared to be in good condition besides a little bit of oil around the top that I wiped off, they are only about 3 months old. I was thinking maybe the ignition coil packs? but I have no idea to tell if they are bad or not. And also around this time I started to experience some slippage in my clutch, my engine starts to move faster then my car is responding. It usually only happens sometimes in 4th or 5th gear if I accelerate a decent amount. Besides that the clutch still drives great and I believe only has around 25k on it, so I would assume that my clutch is not going out. I would appreciate any advice from anyone with knowledge on any of my car troubles.

 

Well you should scan the ecu first and see which cylinder(s) are misfiring. Do you get a flashing cel?

Low oil pressure could be anything from a bad oil pump, clogged oil pickup screen, sludge, valve cover gasket/spark plug gasket, oil pan gasket... and so on. You could install an oil pressure gauge and see if you really have low oil pressure, or it's just faulty wiring / bad oil pressure switch.

If you have oil at the spark plugs then you should replace your valve cover and the o ring gasket around the plugs. Do you have any oil around the valve cover?

 

I am not getting any check engine lights on, so I didn't think any codes would come up, and as for the low oil pressure, I took it to an import shop and they said I was loosing oil pressure after the car has been on for about 3 minutes, and they said they are going to try and replace the oil pick up screen tube, and if that doesn't do it then I probably am going to have to get a new engine. I really hope the pick up screen tube fixes it.