Engine Malfunction Light

[etsooner]

Changed my spark plugs a few weeks ago. The day after the engine malfunction light came on and went off after I restarted engine. On the way to work this morning the light came on again and didn't go off this time. Was wondering if anyone knew what I need to check. The manual says its related to emissions. I've got 127,000 mi. Trying to keep from having a huge repair bill. Any help or suggestions would be greatly appreciated.

[N_Jay]

Originally posted by etsooner
Changed my spark plugs a few weeks ago. The day after the engine malfunction light came on and went off after I restarted engine. On the way to work this morning the light came on again and didn't go off this time. Was wondering if anyone knew what I need to check. The manual says its related to emissions. I've got 127,000 mi. Trying to keep from having a huge repair bill. Any help or suggestions would be greatly appreciated.

Get the code read.

Without the code everyone is just guessing.

Some here have amazing confidence in their guesses.

[ctobio]

Your local autozone will scan the codes for free. Post the results here. I suspect a misfire, but that's pure speculation.

[etsooner]

You were correct. Went to autozone and it said that it was a misfire. Not sure if I need to change the wires or just see if i didn't get it put back on good. It said a misfire on number 4. Not sure which one that is.
On the way home from work, was rolling my window down and it stuck. I hear a clicking sound but no window movement. Glad the rain stopped this morning. Isn't my week for the vehicle.

[ctobio]

Originally posted by etsooner
You were correct. Went to autozone and it said that it was a misfire. Not sure if I need to change the wires or just see if i didn't get it put back on good. It said a misfire on number 4. Not sure which one that is.

I would try this:

Swap the coilpack with the cylinder next to it. If the misfire returns on plug number 4, you have an issue with that spark plug- gap is wrong, or the plug may be defective.

If the misfire follows the coilpack, you may have a defective coilpack.

[etsooner]

As stated in the previous post, the Autozone readout stated I had a misfire in number 4. Does anyone know the order of the plugs so I don't have to guessing which one it is? Any help would be appreciated.

[ctobio]

Originally posted by etsooner
As stated in the previous post, the Autozone readout stated I had a misfire in number 4. Does anyone know the order of the plugs so I don't have to guessing which one it is? Any help would be appreciated.

For some reason, I had a hard time getting this info. It's not on the valve covers, nor is it anywhere obvious in the Service manual.

Anyway, standing in front of the car:

Rear bank closest to firewall goes, left to right:

1-2-3

Front bank, closest to radiator goes, left to right

4-5-6

So, swap 4 and 5 and see what you get.