| Hi first off is this a correct cylinder numbering: --- FIREWALL ---
(1)---(4)
(2)---(5)
(3)---(6)
--- RADIATOR --- I just put in new spark plugs into my car. The plugs in there were Champion 3071 which after a google search are platinum plugs not sure how many KM on these ones since i didnt change them since i bought it. At the same time i unplugged the fuel relay off and with all plugs out started a compression test for the first time... Question could I have just unplugged the PTU? that should stop the injectors from working too right? Anyway here are my results for the compression test, i tested each cylinder thrice: (1)---(149, 149, 149)PSI
(2)---(155, 156, 155)PSI
(3)---(144, 147, 152)PSI
(4)---(150, 148, 151)PSI
(5)---(145, 148, 145)PSI
(6)---(139, 135, 135)PSI Since number 6 didnt look quite right I redid it and got even lower: (6)---(110, 112, 110)PSI I checked the gauge the o-rings look good. I tested on another cylinder and got the same results on those. checked cylinder 6 again: (6)---(100, 110, 110)PSI WTF?!?!?! I dont understand what's happening? Does anybody have a clue? Next I put in the new NHK spark plugs i got from IPP. I kept breaking bits of plastic the connectors from the wiring harness that connects to the coil packs. arrrg.. need to buy new ones i think. They are holding for now. In the end I am kind of surprised my engine is holding good pressure except for cylinder 6. Is this common? And has anybody retapped cylinder 4 sparkplug slot before with the plenum on? Is it possible?
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