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Injector issues, no power

Tiny
WLREYNOLDS
  • MEMBER
  • 1990 OLDSMOBILE CIERA
  • 3.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 117,000 MILES
Have tried removing one at a time, no change. When rail is removed, plenty of fuel through port. Will run with fluid. Have already replaced: ECM, mass air, plugs/wires, fuel pump, throttle position sensor. Fuses all good unless there is one inline I don't know about. Mechanic friends are stumped and wife is panicking. Any suggestions?
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Sunday, September 4th, 2016 AT 8:51 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure with a gauge should be 41-47 psi with key on only. If injector is bad it would miss. If there is no signal pump will not run check MAP sensor for a soft hose or being bad as they won't run if that is bad check inline fuse by starter for pump.
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Sunday, September 4th, 2016 AT 10:46 AM
Tiny
WLREYNOLDS
  • MEMBER
  • 4 POSTS
Thank you! Will try!
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Sunday, September 4th, 2016 AT 3:03 PM
Tiny
7175031687
  • MEMBER
  • 0 POST
I have a similar problem but only lost control power to # 8 fuel injector starts right up will drive fine till you need power then hesitates do to only running on 7 cylinders lost 6 miles per gallon
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Wednesday, September 14th, 2016 AT 5:30 PM

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