1998 Chevy Truck will not start

Tiny
JIMFOGEL
  • MEMBER
  • 1998 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
My truck will not start, unless I spray starting fluid in I have the 5.7 vortech. Now have checked for codes not given any. I have checked fuel pressure it was at 60 psi and 50-55 with engine off have checked fpr that was good did not loose pressure. I have good spark im just not getting fuel at startup. I am starting to think that the ecm is not telling the fuel injectors to pules at startup, but when it gets started it idles and runs very good im at a loss. Is there any way I can test the ecm or should I just take it in and have a diagnostic done? Thanks much
Sunday, January 25th, 2009 AT 5:02 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the injector/s not pulsing due to a defective computer or the computer is not picking up a signal from the cam and crankshaft sensor and unable to energize the injector/s to include the CTS-Bring it in and get it diagnose

FUEL SYSTEM

FUEL PUMP PRESSURE
Applicationpsi (kg/cm2 ) 5.7L60-66 PSI (4.2-4.6) This is KOEO
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Sunday, January 25th, 2009 AT 5:19 PM

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