Question about 1995 Buick Century

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I have a 1996 buick century 3.1L. misfire # 1 cylinder

Here's the fun part.i know why its having the misfire i just don't know why
it's doing it. before i found out what was causing the misfire on my #1
cylinder.i did the first step changing the plugs and wires no luck so i
went and got a new fuel injector.. so i start the process of taking all the
**** apart to get the injectors {by the way its my first time doing this lol}
i did it slow and took my time. so i go to pull the fuel rail out and all but one injector came out which was the #1 i put down the fuel rail.which had only 5 not all 6. so i pull it out .on top of the injector it had this white powder like substance and inside the two little holes i tap the injector on my car more of it was coming out.then i looked at the fuel rail where the #1 injector go's to and it was jammed pack with this white
stuff.so i clean it out it took over an hour .pain in the a$$ but i got done
and put everything back together with new injector .start it up and know
problems know misfire nothing .then 2 weeks later my engine light came back on #1 misfire again what do i have to do get a new gas tank
or something. thank you for reading

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  • 491 Answers

Add some additive and take apart and clean again. change the fuel filter also cause it sounds like theres something clogging somewhere and it will take some trys to get it all out

Posted on Dec 22, 2008

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Order for plug wires


For the 1994 Buick Century:
I do not know if you have the 2.2L In-Line 4-Cylinder or the 3.1L V6; however I have included both below:

For the 2.2L L4:
Firing Order:
1-3-4-2
Cylinders:
.........(back).........
|...1....2....3....4...|
........(front)
Coil Connections:
(back)
o <----4
O.o <----1
.......o <----3
.......O.o <-----2
(front)

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.......(back)........
|...1....3....5...|
.......................
|...2....4....6...|
.......(front)
Coil Connections:
...........(back)
|.5..2.|..|.3..6.|..|.4..1.|
...........(front)

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