Fuel Injection pulse
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New User
Joined: May 2002
Posts: 10
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Fuel Injection pulse
Have a 1988 f-150 w 351 EFI
Has spark and will start with starting fluid but is not getting gas.
Fuel pump replaced and getting pressure in the injector gas rail.
ECC and fuel pump relays ok.
Have 12v on injectors but no injector pulse when cracking.
What causes injectors to pulse??
Has spark and will start with starting fluid but is not getting gas.
Fuel pump replaced and getting pressure in the injector gas rail.
ECC and fuel pump relays ok.
Have 12v on injectors but no injector pulse when cracking.
What causes injectors to pulse??
Elder User
Joined: Jan 2002
Posts: 555
Likes: 0
Fuel Injection pulse
It sounds like a bad ECM under dash. Pulse signal originates from it and likely the trouble. Wiring can be at fault but not as likely in your case. Try and get one from a local wreckers if they have one. A good shop can test this system out but a fairly substantial charge will be involved. Ford calls it a "breakout box."
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Robert Fisk
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