91 ford f150 4.9 pcm fuel injection signal to injectors

Asked by Jun 26, 2015 at 05:23 PM about the 1991 Ford F-150 XLT Lariat 4WD SB

Question type: Maintenance & Repair

if noid doesn't blink

1 Answer

23,035

Your system is designed to provide key power to the injectors and the PCM ground-side switches them. Look for an open fuse or Fuse-link. Do you have spark? If not, I'd look at the Ignition Module.

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