Hi everyone, may you help in figuring my dilemma about my 1.5 liter SOHC civic. After replacing and machining my cylinder head it runs 3 secs and suddenly dies the first time i switched to start. Previously my engine have pinhole blowout to the coolant system causing me to drain from reserve tank and refill it to radiator every god given day. Later on it experienced hard starting like pressing the gas to make it continue running, then easily start in the morning but after some visit in the grocery it refuses to start so need to press the gas during cranking just to go home. I did tried repairing the fuel pump by replacing filter and o-rings, and tinkering electrical work with fuel pump relay. Last test iam puzzled is when i removed ECM connector E (31 pins) WHT and measure voltage from pin 1 to ground that i receive a positive volt during 2 seconds in switching ifnirion to ON. Does it imply to replace or reprogram my ECM?? Kindly help.