old post, but.... others will like it in same jam....you didnt try a new spark plug? after all spark plugs LOVE TO SHORT under pressure, !!!!!! has spark means ZERO to me.only TECHNIQUE has meaning, HOW? Done? (3 ways )?does your engine (displacement not stated) have a timing belt.did you replace it on time,
if not FAIL! ( off topic, but very real)yes, YOU DO that, but , fate does rule the universe. (no guessing)the tests are easy, why fret? gee the compression test is 5min work. ? spark good,injector balance test shows, injector injects same as other 3 (long tests times say 1hr done right) can advice every step. on all.i POINT my IR gun to cyl. X, (dead) and see pyro reading of coldoops CYL X is in fact near cold. or fully. cold.i remove all spark plugs (read the paper in the box , with compression gauge $20) WOT testing only.i insert the fitting in to cylinder Xi crank until the the needle goes steady.150psi, 90 is bad timing belt , near zero is bad compression150 or more is normal, all modern cars.why wait?then if it is a flat cylinder, we don't ask why, we find out why.but in fact you can hear, what is leaking,valves or whatever. in fact
I DO ! (junk car, or fix it logic)I have a $40 leak down tester, toolwith side tool i can hear the leak path (shop air, got shop air?)i can hear the leak in 3 places, head gaskets blow in up to 4 directions, far be it for me to guess.L/Right/F/Rearor the block or head is cracked, running pure water in the coolantis guaranteed, are you?water in the oil? green death to engine oil looks like chocolate milk shake.oil in the water (signs)see hissss tests here.see"You find gross leakage? discovered in test 13"
http://www.fixkick.com/compressiontest.htmldo the compression test WOT, or all data is useless.
WIDe OPEN THROTTLE WITH SPARK DEFEATED .im sure you have a new head now, right?