Skoda octavia 1999 1.9 66kw

[tann]

My Skoda octavia Kombi 4x4 1.9 tdi 66kw

engine oil pressure warning light is flashing, abs light is on(all sensors seems to be okay(obd II diagnostic shows all for correct speed)), and hand brake light is flashing and in the beginning beeps 3 times.

I hope that someone have had same problems and knows how to fix them.

[tann]

And also tachometer is not showing rpm

[tann]

And I changed oil and filter, tryed another oil pressure sensor, still shows warning and if I unplug oil pressure sensor cable then warning light goes away. Also outside temperature shows ..C.. tryed new sensor but 

Car have driven 250000km, so I dont think that oil pump is broken, could it be any other sensor, what is giving false information to the module. And diagnostic scan tool wont detect engine module, so anyone have any solutions?

[KenONeill]

5 hours ago, tann said:

diagnostic scan tool wont detect engine module

Telling us which scan tool you have would help here.

[tann]

33 minutes ago, KenONeill said:

Telling us which scan tool you have would help here.

I have vcds 12.12

[Breezy_Pete]

See if you can see an rpm signal in measuring blocks for engine module. I'm wondering if the crank (engine speed) sensor has failed, and everything else is because of that. 

[tann]

5 hours ago, Pete_Ex-Wino said:

See if you can see an rpm signal in measuring blocks for engine module. I'm wondering if the crank (engine speed) sensor has failed, and everything else is because of that. 

Yes, it is not showing rpm with diagnostics, but it runs, so I dont know

[Breezy_Pete]

I know the oil pressure warning system takes rpm info into account so this may be why that is complaining.  ABS module may also have a use for it so I'd suggest fixing that and seeing what happens.