No fuel getting to engine

1994 GMC JIMMY
180,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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KEN MCCRACKEN
  • MEMBER
  • 1 POST
This truck has the 4.3 w with CDI injection. pulled motor out and put in low mileage one. motor will start with gas put in intake, have fuel to injectors. have replaced fuel pump filter and nut lines the injector too. new distributor as well. in addition new oil sending unit. have 12 volt going through injector.
Mar 31, 2019 at 1:35 PM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good morning,

When you monitor voltage at the injector, does the wire that goes to the ECM quad driver flash with a test light while cranking?

If it does then you need to verify fuel pressure.

If it does not then you need an ECM.

Roy
Apr 2, 2019 at 6:03 AM