I've just installed my 22R-e after a complete overhaul w/ pistons, bearings, oil pump etc. It started up directly and ran amazingly! After what I've been through with my last engine I didn't think a toyota could run that great...but
the gauge for the oil pressure barely moves. When I rev the engine to 4000 rpm the marker barely reaches the first notch on the gauge. If I recall correctly my last engine always ran with the gauge pointing at the middle, alongside with the temp gauge. I have switched the entire cluster to one from a 1990 model and my oil pressure sending unit come from my stock 1993 engine. Could that be it?