i recently did a head gasket and timing belt on a 05 civic, not my first, im sure on the timing.
after all put back togeather, car ran awesome for 5 minutes then died.
we did jumpstart the car twice with 200 amp start, and had the battery out. in case its running through your mind the pcm....and i hope not. i have heard the stories and its happened in my shop.
but i just cant see it, ive disconnected the battery and jump started so many cars, i just cant see it.
so i unplugged the fuel line coming into the fuel rail, put the key in the on position.......
i believe im right, when in the on position the fuel pump turns on (right?) and stays on, hold pressure and i should have fuel coming out of that line.
well, i do for 2 seconds, i thought that was odd at first, i checked the voltage to the fuel pump. i got battery voltage coming in one wire, and battery voltage in the yellow and green which all data says to check.
after doing reasearch i learned that its normal to lose that voltage and the fuel pump after 2 seconds, and that the a/t relay, and air fuel ratio relay work togeather. and its normal function.
WHY DONT I HAVE CONSTANT FUEL PRESSURE?
what else is a factor?
its odd that it ran fine and then all the sudden gave out, car was running fine and did for 5 minutes after the job.