86 nisson

1986 NISSAN TRUCK
4 CYL • 2WD • MANUAL
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BOBEDUXBURY
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  • 6 POSTS
ok i finnly got it to run but is smokes more than a 80 year old , is it still the injecters or could it be pressure reg , ive replaced maf with differant one ,and hook up vac lines by the sticker under hood , i dont hear anymore clicking anywhere . it still stumbles but runs half way decent but is smoking badly .. i checked the codes best as i can tell code 12 and 13 came up ,but i also think 24 and 25 showed up but i dont see the code go that high , so i doubt that part , thanks for the help again
May 24, 2011 at 10:04 PM
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RASMATAZ
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  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
May 25, 2011 at 5:15 AM
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BOBEDUXBURY
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  • 6 POSTS
can youi tell me what the screw is for on top of the injector , there is no mention in the book
May 29, 2011 at 8:48 PM
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