9 to 13 LBS. NO higher are lower.
It should be about 40 psi.
7-10 pounds at idle when at operating temperature. When at 2,000 RPM it will be 30-45 pounds.
usually round 40 lbs
You do nothing. The reading from the barometer is absolute pressure.
Oil pressure (minimum)1000 RPM...........................6 PSI2000 RPM...........................18 PSI4000 RPM............................24 PSIPSI/pounds per squire inchAnything above those reading are fine too.
Low pressure
Gives a reading of what the pressure in the system is.
Arterial pressure
The oil pump on an engine Only supplies a volumn of oil to the engine. Oil pressure is formed by squeezing the oil past the bearings. Have you checked the oil pressure with a external mechanical gauge. DO NOT judge by the dash gauge reading. You may have pressure and your sending unit is defective.
Answering "How do you fix a 1995 Chevrolet Lumina emission test fail NO x ppm reading fail?"
Phonetics are supposed to help the learner with reading aloud. Basically, it is supposed to help pronuncation.
air pressure