Thread: Reasons for no cilinder activity

Yea i was about to say the same thing. last JDM 10:1 i tested was between 175 and 190 psi
But as long as they are all equal i think you could rule out a compression issue.

Given that its only 1 clyinder yoiu can prbabaly rule out cam timing, so is it fues injector/ wiring/ ecu
Or Spark plug, lead, dizzy cap

have you done a leak down test along with the compression test? That might give you a hint at something in the cylinder with excessive leakage. You might get some compression but it may also be leaking out right away on detonation.