Hi, sorry for the delay in my reply, been busy with work, and had to do a short overseas trip.
I did the oil and filter change, helped a little.
U then got the gauge checked and re-calibrated, it now reads just over 1 bar when the engine is hot and at tick-over.
The oil pressure looks fine as the rev's rise and for normal and faster driving.
The red dashboard old light flickers occasionally when the revs at tick-over drop really low, mostly only when the engine is hot but it is cool and the air-con is off so there is no load on the engine.
The Mivec I think is working, but I think the thicker oil I used for this oil change is making it slightly less responsive at higher revs.
I will probably do another oil change in about 5000KM and go back to 10W40 fully synthetic. I am on 5W50 fully synthetic now. I will keep on top of regular oil changes and maybe this will help as the engine may have been sitting around for a while before I bought it and got gummed up.
I did enquirer about replacing the oil pump, but its a big job so will see how things go for now.
Worse case is I will need a bottom end rebuild at some stage but now there is no sounds that suggest this is needed yet.
Just part of the fun of running a higher performance JDM engine that is almost 20 years old, and came from Japan with no history I guess :rolleyes:
Been on a few mid distance drives now and overall the car is running fine.
Thanks for all the support and suggestions from this forum, helps a lot to have a resource like this that is in English
cheers