ok heres the deal motor is a b16a2 running 7 psi. about a month ago cel came on did a scan random misfire in cylinder 1,2,3,4. changed plugs and wires didnt fix it. so before i decided to go out and buy other **** did a compression test results came out bad. cylinder 1-160 cylinder 2-90 cylinder 3-160 cylinder 4- 90. did a leak down test the really didnt hold alot of air. at this point im thinking more maybe broken valve springs or bent valves. but also thinking rings are bad not sure. any one with some input i would appreciate it thanks.

 

Leakdown test should really help pinpoint Valves or Pistons.

I hate to say it, but I think its the Pistons because #1 and #4 are go TDC, then #2 and #3, so Leaks at 2 and 4 doesn't make me think bent valves as valves I'd imagine would be all 4, or a rotational pair like 1+4, or 2+3

 

Sometimes it doenst have to do with pistons, if you have 2 adjacent cylindars that show low comp, then that could also mean you have a blown or weakened head gasket

 

If the headgasket is weakened/leaking he'd have SERIOUS power issues and be blowing alot of white smoke I'd imagine?

 

if u cant tell by the leak down test then i would pull the head off maybe head gasket or rings.. but id go with rings bc ur compression is shot to sht. good luck

 

yea the thing is i have a significant power lose and its not head gasket cause i holding water thats why im thinking more of rings or valves