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No injector power, ground on both sides of.

Tiny
SHOVELX71
  • MEMBER
  • 1998 NISSAN SENTRA
  • 120,000 MILES
No injector power, ground on both sides of connector with key on. No pulse, 36psi fuel, has spark. What supplies power to the injectors?
Thursday, March 28th, 2013 AT 11:57 PM

8 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Fuse in the fuse block. 12 volts key on power and the pcm grounds the circuit.

Roy
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Friday, March 29th, 2013 AT 12:16 AM
Tiny
SHOVELX71
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Ck'ed all fuses and relays, all good, scanned with solis, inj pulse wighth.2.85 and when cranking 62. Or 69. Broken wire?Ground on both sides of terminial.I have alldata and doesn't steer me anywhere. Been doing this over 30 years, Chrysler tech 15 of them. Baffled?Thanks for your help! John
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Friday, March 29th, 2013 AT 2:07 AM
Tiny
ASEMASTER6371
  • MECHANIC
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How did you get a pulse width of 2.85 with no power to the injectors?

Roy
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Friday, March 29th, 2013 AT 2:09 AM
Tiny
SHOVELX71
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That's what the scanner showed with key on.
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Friday, March 29th, 2013 AT 2:16 AM
Tiny
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  • 6 POSTS
That's what's baffiling.
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Friday, March 29th, 2013 AT 2:19 AM
Tiny
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Thanks for the help Roy!
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Friday, March 29th, 2013 AT 2:21 AM
Tiny
ASEMASTER6371
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Did you verify no voltage with a volt meter?

Roy
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Friday, March 29th, 2013 AT 3:08 AM
Tiny
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Yes I used a logic probe. Ground on both sides. Also used a noid lite.
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Friday, March 29th, 2013 AT 10:14 AM

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