Have you replaced the fuel filter. also check the battery new cars use a lot of power and that could cause a random misfire code. if those are all good then check for a vacumm leak. you can do that with carb cleaner by running the vehicle and spraying around the intake manifold or vacumm lines and listen for a change in the motor
SOURCE: p134, p0141, po300, po130 and po135. 2005 Sunfire.
Given that most of the trouble codes are for the O2 sensor, I think I would change it. The multiple misfires could be because of improper fuel/air mixture caused by a bad sensor. Disconnect the negative(-) battery terminal then change the sensor. Disconnecting the negative(-) should reset the computer and allow the fuel/air mixture to return to default allowing the engine to start.
P0130 - O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
P0134 - O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0300 - Random/Multiple Cylinder Misfire Detected
SOURCE: 2005 chevy colorado runs rough and gets bad gas mileage.
Sounds like it needs spark plugs and wires, and a fuel system treatment.
SOURCE: po302 code,po301,po300
usually a p0300 is a random missfire code due to a fuel problem probaly bad gas , use some in tank fuel treatment such as techron or lucas injector cleaner, after adding fuel disconnect negative terminal to batt, to clear codes and see what happens
SOURCE: Rough idle
sound slike you may have unplugged or disconnected somethine else or the spark plug you put in is bad or inpropper gap
SOURCE: replaced battery on 2002 gmc envoy. now it goes dead when air is
You need to clean your throttle body, make sure to clean both front and back sides thoroughly.
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