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Discussion Starter · #1 ·
Going down hwy it started misfiring. Pulled into Advance Auto for a code check. First time, P0141- Oxygen Sensor Heater Circuit Bank 1 Sensor 2, P0303- Cylinder 3 Misfire & P0440- Evaporative Emission System. So I changed spark plug as it was corroded. Done the same thing as before. Ran code again and got P0137- Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 & P0305- Cylinder 5 Misfire. I changed all plugs but not wires. I also checked the coils. Ran good for about 15 min then started misfiring again. Only this time, it's so bad that the motor shakes when I first start the car, kinda acts as if it wants to die out but stops once in gear. Made sure the coils were still good and checked spark plugs with multimeter. All good. Went to get codes and it threw 14 codes. O2 sensor is reading correct voltage. I don't know what to do!
 

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Coils can have issues when they get hot which can explain why it takes a bit of time to start misfiring. I had the 3.4 in mine and dont know if the coil set up is the same, but if it is, i am not sure of which of the 3 packs are married, but i dont think 3 and 5 are on the same coil pack. How old are your plug wires?
 

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Discussion Starter · #3 ·
I just replaced all plugs and wires. Wire 6 had about 1.5 inch burn and I'm almost positive that was my issue because it's fine in that aspect now.
 

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[QUOTE = "snosaint, publicación: 3724963, miembro: 189826"]
Las bobinas pueden tener problemas cuando se calientan, lo que puede explicar por qué se tarda un poco en comenzar a fallar. Tenía el 3.4 en el mío y no sé si la configuración de la bobina es la misma, pero si lo es, no estoy seguro de cuáles de los 3 paquetes están casados, pero no creo que 3 y 5 estén en el mismo paquete de bobinas. ¿Qué edad tienen los cables de su enchufe?
[/CITA]
Bobina Coil Pack # 1 Suministra Chispa a Cilindros 1 y 4, Coil Pack # 2 suministra Chispa a Cilindros 5 y 2 y Coil Pack # 3 suministra Chispa a Cilindros 3 y 6 espero sea de utilidad y que resuelvan.
 
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