1998 NISSAN SENTRA
120,000 MILES
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SHOVELX71
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no injector power,ground on both sides of connector with key on.no pulse,36psi fuel,has spark.what supplies power to the injectors?
Mar 28, 2013 at 11:57 PM
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ASEMASTER6371
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fuse in the fuse block. 12 volts key on power and the pcm grounds the circuit.

Roy
Mar 29, 2013 at 12:16 AM
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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
Mar 29, 2013 at 2:07 AM
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ASEMASTER6371
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how did you get a pulse width of 2.85 with no power to the injectors??

Roy
Mar 29, 2013 at 2:09 AM
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SHOVELX71
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That's what the scanner showed with key on.
Mar 29, 2013 at 2:16 AM
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SHOVELX71
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That's what's baffiling.
Mar 29, 2013 at 2:19 AM
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SHOVELX71
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Thanks for the help Roy!!
Mar 29, 2013 at 2:21 AM
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ASEMASTER6371
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did you verify no voltage with a volt meter??

Roy
Mar 29, 2013 at 3:08 AM
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SHOVELX71
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yes I used a logic probe.ground on both sides.also used a noid lite .
Mar 29, 2013 at 10:14 AM