Hey everyone.
Got myself a project to work on for quite a cheap price.
A 2005 GTI fitted with AXX 2.0 engine, car was standing for 7 years.
When running if revved now and again comes up with Oil pressure warning please stop engine.
Cleaned it all up, changed oil & filter, checked wiring to pressure sensor, getting 12v no probs, changed pressure switch while i was down there.
Took sump off, cleaned pickup pipe which wasnt that really dirty and checked oil pump +
Balance shaft assembly, no play in balance shafts and oil pump looks like brand new if looking from the side where pick up pipe goes.
Checked oil pressure with 2 different gauges and im getting 4 bar on cold
Idle and increasing up to 5 bar if revved, only gone up to 4k at most, didnt want to rev past it.
On hot engine if i start it up the oil pressure sits just above 2 bar, and increases up to 5 bar if i rev it up to 3k-4k rpm.
Engine itself sounds ok, looking inside oil cap when engine is running, theres definitely oil at the top of the engine too, so i really dont think theres an actual oil pressure issue.
Is there anymore wiring i can check? Maybe someone has a diagram for oil pressure switch wiring, maybe theres a wire broken that goes to the cluster thats broken?
Any advice, ideas or wiring diagrams are highly appreciated.
Im a diesel man and work on diesels daily, no stranger to petrols but not so good with them especially with vag petrols, know absolutely nothing about them.
Thanks.
Nick.
