I changed all spark plugs and wires. the plugs I bought were not correct but came up as OEM. According to Toyota, you must use plugs with double grounds instead of single ground. After installing wrong plugs, engine missed terribly. Put old plugs and wires back on and still misses. Now my cat converter is being changed due to melt down. I've changed many plugs and wires on many cars but i'm puzzled to how this happened.
A common problem on these engines are the ignition coil packs, there is one for each cylinder, do you have any diagnostic code information so I can help diagnose the problem? The cat converter overheated due to the misfire.
SOURCE: 94 toyota tercel with no spark
Check your timing belt if is broken cause of your distributor rotor not turning.
SOURCE: After changing my spark plugs and wires in a
On american cars the firing order is imprinted on the engine itself, if not the firing order is located in your owners manual it will also give u gap specs as well. Make sure the gap is right and firing order is right, If they are both correct then you might need look into your distributor or coil whichever ur case may be. If all this is correct, check and make sure ur wires aren't faulty and fouling out against metal or the brackets their mounted in. This is rare but it does happen sometimes.I hope i have helped you
SOURCE: 2008 GM Melted ground wire/headlight plug - why ?
On your bulb. It should be labeled DOT 12V and then have something like 45W,50W, 55W or whatever wattage your bulb is. If it doesn't, then the bulb is not a proper bulb. I've seen a lot of people installing aftermarket bulbs that burn the wiring and harness because the bulbs draw much more power than the wires are designed (I've seen some install 100W bulbs for 50W harnesses)
If the car was purchased new and the bulbs are the original bulbs, then I don't believe they would. In that case, I would be lead to believe it is an issue with the harness, which could cost upwards of $100. You could splice in a new wire (14GA and better recommended). I don't think headlights are covered under warranty, but you could give it a shot and see what they say.
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