I have a 04 aveo with this codes 1781, 700, 300, 131, 133

[yiwijho1]

Hello everyone I wuold like to know if any body had this problems and how it was fixed if it is expensive or easy to fix and if all this codes are related thank you for the help

[Daox]

Assuming those are P codes you have:

1781 - no idea
P0700 - Transmission Control System Malfunction
P0300 - Random/Multiple Cylinder Misfire Detected
P0133 - 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0131 - 02 Sensor Circuit Low Voltage (Bank I Sensor I)


Sounds like you have a bad O2 sensor. Replacing that might get rid of the P0300 code as well. I'm really not sure about the first two codes though. The 1781 isn't even listed on http://www.obd-codes.com.

[ontarian_frog]

Hello everyone I wuold like to know if any body had this problems and how it was fixed if it is expensive or easy to fix and if all this codes are related thank you for the help

Give me the description of the codes and I'll give you an answer.

[yiwijho1]

thanks for the anwsers, i was doing a lot of reserch and the solution for this problem was replacing the spark plugs I used what other people sugested and work Copper autolite spark plugs in my case it work too
all the codes are gone exept for code P0131 I have to go to the auto parts to buy the sensor i will post when I got it.

[yiwijho1]

I forgat to mention that the people use marvel mistery oil and after 100 miles do a oil change . This will clean the valves that cause code 1781