1989 NISSAN

  • Tiny
  • jshada
  • 1989 Nissan

Engine Mechanical problem
1989 Other Nissan Models 4 cyl Front Wheel Drive Automatic

Hi I have an 89 nissan stanza 4 cylinder. I replaced the plug wires and the plugs, this car has 8 spark plugs 4 on the intake side and 4 on the exhaust side. It runs rough and misfires at times thats why I replaced the plugs and wires but it did not help. Is there any way to disable the intake side plugs without causing more problems or should I look at something else. Thanks

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Saturday, May 17th, 2008 AT 12:21 PM

4 Replies

  • Tiny
  • rasmataz
  • Member

Do an engine compression and fuel pressure check and comeback with the readings.

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Saturday, May 17th, 2008 AT 12:49 PM
  • Tiny
  • jshada
  • Member

The commpression is 133 on the 1st, 130 on the 2nd, 131 on the 3rd, 137 on the 4th. The fuel pressure is between 45 and 50 lbs. Thanks

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Saturday, May 17th, 2008 AT 2:52 PM
  • Tiny
  • rasmataz
  • Member

Look below -fuel pressure border line -compression way over 20% tolerance-down side.


http://www.2carpros.com/forum/automotive_pictures/12900_fuel_pump_specs_1.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_compression_1.jpg

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Saturday, May 17th, 2008 AT 6:43 PM
  • Tiny
  • jshada
  • Member

I rechecked the compression and on the 1st it is 155, the 2nd 160, the 3rd 157, the 4th 155. Thanks

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Thursday, May 22nd, 2008 AT 11:13 AM

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