1998 Chevy Express 1998 Chevy express 5.0 engine swap now n

Tiny
WILLIEJACK
  • MEMBER
  • 1998 CHEVROLET EXPRESS
  • V8
  • 2WD
  • AUTOMATIC
  • 96,000 MILES
I just swapped motors on my van5.0 vortec for a 5.0 vortec same year, after getting engine in brand new distrbuter, plugs wires, cap, rotor, I now get a no pulse width the motor wants to fire it will kick once and by looking at the scan tool, reads no pulse width, all other ranges seem good throwing out no codes any help would be greatly appriecieted, also forgot to mention this motor has a lt1 cam the other motor was stock, kept orignal harness and all sensors and pcm
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Wednesday, May 13th, 2009 AT 12:03 AM

3 Replies

Tiny
DOCFIXIT
  • EXPERT
Hi
Are you getting fuel pressure and spark?
Check grounds look for any wire that may have been left off. Especially the ground near the thermostat housing.
Let me know
Thanks for donate
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Wednesday, May 13th, 2009 AT 11:04 AM
Tiny
WILLIEJACK
  • MEMBER
Yes I have spark and fuel, will give a kick as if to start, with scan tool on reads no pulse width all other ranges seem fine
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Wednesday, May 13th, 2009 AT 1:43 PM
Tiny
DOCFIXIT
  • EXPERT
Check voltage to injectors pink wire also connect Noid Light what are results? Again recheck all connections and grounds. Using VCM original or from replacement engine? Disconnect crank sensor see if it will start.
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Thursday, May 14th, 2009 AT 8:07 AM

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