low ldle,low compression in 1 cyl,causes?
to keep short cel came on, scanned missfire in 2,4. car idled low when warm.changed cap,rotor left work died on way home no spark.after test changed coil fired back up but still low idle. so change plugs no luck. did commresion test because i have that tool and heard puffing out exaust pipe. found compesion to be from drivers side in to be 160,90,165,150. could this be bad injector,loose valve. took oil fill off and little presure but not enough to blow cap off when turned upside down. dont have fuel pressure gauge should i bother picking one up? i have 96 civic ex