i have a 94 jdm h22a and i did a compression test and these are the number

cylinder #1 210psi
cylinder #2 210psi
cylinder #3 180psi
cylinder #4 180psi

 

my h22a has between 220-230psi in each cylinder.

Add a cap of oil to the low psi cylinders, and see if the numbers climb?
are you opening the throttle??

 

i jus tdid both 3 and 4 again and there at 210 psi.... and no i forgot about the wot part...let me go back and do them all ill report in about 15 min

 

ok at wide open throttle i got, 210, 215, 210, 225.... wtf is going on, i let it hit compression stroke 7 times each cylinder at wot

 

as long as they're within 10% of each other (20psi) it's normal.

 

Correct, it's not so much about the numbers themselves but the consistency of the numbers across the cylinders in general.

 

yeah well i did it again and got 235 in each one, tested each cylinder twice...

 

^^who's this moron? trying to be e-gangsta?

 

uhh your not talking about me are you? i'm pretty sure i'm just talking about a compression test? is that "e-gangsta"?

 

your username, I would presume.

and I feel like you're doing it wrong dude. If your compression numbers are bouncing all around, then you need to unplug the main coil wire, and unplug the fuel pump fuse under the dash, top row, 15amp. #23 if memory serves.

Then crank it WOT doesn't matter how many cranks it takes (well it can for diagnosing but to keep it simple don't worry) just stop when it maxes out.

Those will be your final numbers. If anything comes up low, try a little oil, then retest. You shouldn't be getting different variances every time. Crank til it maxes out

 

way to bump a six year old thread

 

Lol. Idk how that happened. It showed up on my feed as new.