Thats not what I was talking about, but its still important.
I was referring to a jet that squirts oil up under the piston and cylinder wall to lube the piston pin/wrist pin. Its either 1 for all cylinder or none, not every other cylinder. Maybe honda doesnt do this?
Yes, oil psi regulation is important and flow. Many engines are blown because people rev em to the point the oil is pumped to the top of the engine faster than it can drain back to the pan and it starves of oil. Another issue is the rods slings the oil out faster than the pump can replenish it if the volume or psi isnt up to par and bearing clearances.
Alot of the newer honda engines that can give vtec errors have a pressure sensor and if the oil psi isnt there it faults and wont engage vtec.
FYI, a lot of gen 1 insight owners have found this error is related to the vtec screen getting clogged up and blocking oil flow. Not many guys engage vtec on an insight though.
