yea i let the car warm up den i did it but i did it with the throttle close the first time and i did it all over again let the car warm up and did it with the throttle open (i also disabled the fuel injection and ignition) but i guess i must have some carbon build up like dude said . but question i was told that aslong as they were within 10 psi from each other it was ok any thing higher is bad so which is it 28 or 10?
Quote Originally Posted by 350ZFTW
THIS IS FROM MY ALLDATA
Check compression with engine at normal operating temperature and throttle in wide open position. Prior to performing test, disable ignition and fuel injection to prevent fuel from being sprayed into cylinders while cranking engine. Ensure is fully charged and that cranking speed is 250 RPM. Standard reading should be 135-199 psi. The maximum variation between cylinders is 28 psi.