Mechanics

NISSAN SENTRA FUSE PROBLEM

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?
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Shovelx71
March 28, 2013.



Fuse in the fuse block. 12 volts key on power and the pcm grounds the circuit.

Roy

ASEMaster6371
Mar 29, 2013.
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

Tiny
Shovelx71
Mar 29, 2013.
How did you get a pulse width of 2.85 with no power to the injectors?

Roy

ASEMaster6371
Mar 29, 2013.
That's what the scanner showed with key on.

Tiny
Shovelx71
Mar 29, 2013.
That's what's baffiling.

Tiny
Shovelx71
Mar 29, 2013.
Thanks for the help Roy!

Tiny
Shovelx71
Mar 29, 2013.
Did you verify no voltage with a volt meter?

Roy

ASEMaster6371
Mar 29, 2013.
Yes I used a logic probe. Ground on both sides. Also used a noid lite.

Tiny
Shovelx71
Mar 29, 2013.