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Wont start injector no Pulse, only ignition coil working spark present

Tiny
JOHN HARRY
  • MEMBER
  • 2003 NISSAN PATHFINDER
  • 230,050 MILES
No fault codes, crank sensor new, injector not short correct value, ONLY NO EARTH OR GROUND COMING IN INJECTOR, COMPUTER NOT SENDING EARTH, what is the possible cause I dont have any idea any more. Thanks in advance
Friday, March 16th, 2012 AT 12:19 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If power is present to one of the injector harness and its not synchronizing -check the computer injector ground drivers circuit
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Friday, March 16th, 2012 AT 12:22 AM
Tiny
JOHN HARRY
  • MEMBER
  • 14 POSTS
Yup supply present at one of the harness.I check all ground conected in computer all ok, I check all lines no broken or cut lines, only earth nocoming from computer.6 EARTH LINE IN COMPUTER ALL PRESENT(BLACK WIRE)
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Friday, March 16th, 2012 AT 12:38 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Wire are all good-sounds like the computer injector driver is defective or an input signal such as the camshaft sensor is missing not telling the computer to activate the injectors
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Friday, March 16th, 2012 AT 2:16 AM

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