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1994 Nissan Sentra I CANT FIGURE IT OUT!

Tiny
R.W.SMALLEY
  • MEMBER
  • 1994 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 246,567 MILES
HOWS IT GOING?MY NISSAN SENTRA STARTED MISFIRING TODAY SO I CHANGED THE PLUGS AND WIRES. THAT DIDNT FIX IT.I CHECKED TO SEE IF ALL OF MY WIRES WERE FIRING, THEY WERE. WITH THE CAR RUNNING I PULLED THE WIRES 1 BY 1. THE #3 CYLINDER DIDNT MAKE A DIFFERENCE WHEN I PULLED THE WIRE OFF. ITS A CONTINOUS #3 MISFIRE. IS THAT A CLOGGED INJECTOR?

R.W. SMALLEY
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Thursday, June 5th, 2008 AT 11:49 PM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there.

It well may be a faulty injector, but make sure there is spark at that lead & the fuel injector is getting a pulse signal. Do a comp check as well to be safe.

Mark (mhpautos)
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Thursday, June 5th, 2008 AT 11:53 PM
Tiny
R.W.SMALLEY
  • MEMBER
  • 2 POSTS
EVERYTHING HAS SPARK, THE CAR RUNS BADLY. IT HAS AN OPEN EXAUST SO I CAN HEAR THE MIS CLEARLY. IT HAS A LOUD PUT WHEN IT MISES BUT THE #3 WIRE IS FIRING JUST NO COMBUSTION GOING ON. IT WAS RUNNING FINE ABOUT 3 HOURS AGO.I WENT TO GET SOME FOOD, 10 MIN. LATER I STARTED IT UP AND ONLY 2 CYL. WERE RUNNING SO I CHANGED PLUGS AND WIRES, NOW ONLY 1 ISNT WORKING. ITS CRAZY!
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Friday, June 6th, 2008 AT 12:17 AM

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