I have a 1992 Honda civic lx with a 1.5 four
no start , crank perfectlyso , got spark? the ECU has programming (ROM) and in fact kills all fueling with no spark , (even if it thinks there is no spark, even if spark is ok)all ECU use a way to read back spark quality, (ALL){LAWS}how honda does it in code, i don't know , see C R O M E forum)turn the key over means nothing to me.?? sorry, it doent/try saying what postion? cranking? or just keyon.now some more EFI rules.The EFI (some) do not activate the pump relay until cranking.some do just key on for 3 seconds, read the FSM, its free.need a link to the free manual? read the ECU logic on that.?and prime has a special meaning, it means purge air,its not for fuel. some system send a fast prime pulse. to clear air from the pressure lines, this plus does not inject.that is how EFI works, the flow1: key on, ECU sends prime pulse, (air purge)2: some ecu, run pump for 3 seconds, and pressure hits 35psi? RTM.3: all ecu activate pump cranking and running.4: now check pressure. !" 36 psi FSM stated spec"5: now crank, if the ECU sees no spark errors, it injects6: if the ECU sees WOT. it stops injection to clear a flood, cranking.those rules cover most ECU made.honda this year has a special feature called,Fuel Cut-Off Control'if this messes up, it i can cut fueldoes this help?even better is this site, (has all the facts..)http://honda-tech.com/showthread.php?t=810101