1997 Chevy Cavalier fuel injectors staying closed

1997 CHEVROLET CAVALIER
158,000 MILES • 4 CYL • FWD • AUTOMATIC
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TARALINDER
  • MEMBER
  • 1 POST
i have my car in the shop. and the have guessed at whats wrong. but now they say the injectors are not opening. they are staying closed. what is causing this.
Mar 9, 2008 at 10:10 PM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
the vehicle is supplyed constant voltage to the fuel injectors the injectors are then energized and are awaiting the ground from the ECU. the ECU knows when to ground by information from the O2 sensors, IAT, MAF, and the Crank and Cam shaft sensors. when it collects that information it will ground the injectors causing them to open,


if they are not getting power they wont be running, and if they are not getting ground they will not be runnign either.
Mar 22, 2008 at 3:21 AM
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