Engine wont fire

Tiny
MORTO
  • MEMBER
  • 1990 FORD FALCON
  • 6 CYL
  • 2WD
  • AUTOMATIC
Have 1990 ea falcon 3.9 mpfi and have recently swapped out motor for a fairlane 3.9 mpfi (identical) can I use the same ecu from my original motor. As engine winds over, have spark, fuel getting into rail not sure whats happening after that. She doesnt want to fire. Ps any idea where this wire goes bout 1.2 mtrs long (black)finger on it
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Saturday, February 12th, 2011 AT 6:40 AM

13 Replies

Tiny
MHPAUTOS
  • EXPERT
You say you have fuel, you can hear the pump running and cycling with the ignition on, do you have injection pulse? Are the injectors firing? What is the colour code on the wire? The thumb nail pic will not enlarge for me for some reason.

Mark, (mhpautos)
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Saturday, February 12th, 2011 AT 10:44 PM
Tiny
MORTO
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Not sure what injection pulse is, how do I check if injectors firing do I pull one out and wind over.(Am a backyarder dont have access to fancy equipment)No color code on wire looks like the bloke I got it off has put it in, if your facing the motor the wire goes all the way round to the right side somewhere near inlet manifold. Thats all I remember when I pulled the motor out. Can I use the same ecu.
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Sunday, February 13th, 2011 AT 12:07 AM
Tiny
MHPAUTOS
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You should be able to feel the injector click in you hand, crank it over and feel it, it should click open and closed, crank it for a good few seconds so you get a few pulses to check.

Mark (mhpautos)
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Sunday, February 13th, 2011 AT 12:36 AM
Tiny
MORTO
  • MEMBER
Cant feel any clicking. From injectors
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Sunday, February 13th, 2011 AT 1:53 AM
Tiny
MHPAUTOS
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Do you have a test light? If so check for power at injector, unplug one injector place a paper clip or small split pin in each terminal, connect test light across terminals and crank over, do you have a light, does it blink?

Mark (mhpautos)
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Sunday, February 13th, 2011 AT 1:57 AM
Tiny
MORTO
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Test light is flashing. Got power
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Sunday, February 13th, 2011 AT 2:34 AM
Tiny
MHPAUTOS
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If you have this across the injector terminals, the pulse is ok, you do have spark? Has the distributor been turned at all? Pull the plugs and make sure that they are not just all fuel fouled this will stop it from running, check the map sensor on the fire wall, passenger side with a black vacuum hose going to the manifold, recheck all connections and vac lines, do you have spark at the coil lead and at the plug leads?

Mark (mhpautos)
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Sunday, February 13th, 2011 AT 2:42 AM
Tiny
MORTO
  • MEMBER
Distributer has been played with (by friend)is set to top dead centre and set to number 1 on the dizzy, is this where it should be set dizzy also had markings sayin start finish. Black vacumm hose was off map sensor, on now waiting for battery to charge and try again.
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Sunday, February 13th, 2011 AT 2:58 AM
Tiny
MORTO
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Have spark to all spark plugs, pulled no 1 spark plug out looked into cylinder while mate turned over have fuel squirting into cylinder. Injectors seem ok. Thinking possibly timing issue what do you think
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Sunday, February 13th, 2011 AT 3:12 AM
Tiny
MORTO
  • MEMBER
Have spark and fuel into all cylinders. All hoses plugs etc in tact
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Sunday, February 13th, 2011 AT 3:45 AM
Tiny
MHPAUTOS
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Clean the plugs as they will be fuel fouled, and re set the timing, do you have a manual to do this as it will have to earth out the timomg check conector.

Mark 9mhpautos)
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Sunday, February 13th, 2011 AT 4:07 AM
Tiny
MORTO
  • MEMBER
Have a manual will check it out
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Sunday, February 13th, 2011 AT 4:48 AM
Tiny
MHPAUTOS
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Did you get this problem sorted out?

Mark (mhpautos)
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Friday, March 4th, 2011 AT 1:56 AM

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