Running rough

[L.E.V.I]

I have an 03 century i changed the plugs and wires, and now it is running worse than before. Any ideas on what it could be?

 

[2007LucerneCXL]

First guess is to check if the plugs and wires are correct on the coils number.

 

[Ringo]

Sa

I have an 03 century i changed the plugs and wires, and now it is running worse than before. Any ideas on what it could be?

Me too.just today.idles really rough, almost wants to stall.i been checking you tube etc iacv looks like the next thing to check.25-50$ part though...on a possible fix I don't know if I should risk it yet without more information

 

[chem_man]

Make sure you have the spark plug wires going to the correct ignition coil towers. It's very easy to mess up.

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[Ringo]

Make sure you have the spark plug wires going to the correct ignition coil towers. It's very easy to mess up.

I have actually.did the plugs and wires yesterday and it runs significantly better but hardly stayed running at an idle.

 

[chem_man]

Ringo, have you checked your fuel pressure and operation of the fuel pressure regulator?

 

[Ringo]

Ringo, have you checked your fuel pressure and operation of the fuel pressure regulator?

No sir I have not.i don't know how at this point, tonight my lights quit working, thinking my multi function switch went out as well, so I will be dealing with that next.its becoming more and more expensive

 

[MelsRegal]

Do you have a check engine light on?

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[Ringo]

Do you have a check engine light on?

Yes but they have been on since I got it.it has been wrecked.multi function switch went out tonight so now no lights.ordered it now just waiting

 

[MelsRegal]

So you could have new codes related to your current problem and wont know until you check.