P0030 and p0134 error come up replace 02 sensor 1 car ran 9 days now error codes are back replaced sensor 2 time car will not run right any ideas i read check heater circuit fuse , can't find one
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P0134 - O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1
P0135 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0053 - O2 Heater Resistance Bank 1 Sensor 1
P0030 - O2 Heater Control Circuit Bank 1 Sensor 1
You need to replace the O2 Sensor Bank 1 Sensor 1
Carquest can help you get the correct part and help you locate it.
P0141 Heated o2 sensor. P0134 Heater 02 sensor circuit, These 02 sensor has a fuse in the engine junction box listed as IGN 1. This supplies 12volts to the heater circuit, check to make sure its not a open fuse. If you already replaced the sensors make sure you clear the code. or it will stay in memory.
P2243 Oxygen reference voltage circuit/open,this is a enhance code. P0171 Fuel system lean bank 1, this is a generic code, P0030 Oxygen heater control circuit open or shorted to ground,this is a enhance code, You are going to spend time and money trying to diagnosis this 02 sensor, just replace it,when a 02 sensor fails the ECM defaults to a subsituted value
These are all O2 sensor trouble codes, except P0171 which is a fuel trim code,
You have a bad 02 sensor - up stream - Bank 1 Sensor 1.
Replace it, then road test. The engine computer has a 'default' fuel trim it uses when an O2 sensor fails so it can protect the catalytic converter. If this hasn't been going on too long, good chance simply replacing the O2 sensor will remedy your problem.
Your sensors are reading correctly so leave them alone. What you have is a fuel delivery issue. Your MAF sensor is telling your engine to lean your fuel mixture. You need to remove and clean or replace (is better) the MAF. But first replace your PVC valve and clean your ERG valve.
P0134 02 Sensor Circuit no activity Detected (bank 1 sensor 1) first check your fuses check the wiring to the sensor(the sensor is on the exhaust in front of the engine-open the hood and look down) if the fuses and the wiring look good replace the O2 sensor there are 2 types of sensors original equipment(oe) style and universal the oe style has a connector you just plug in, the universal you have to hard wire in
the 2nd code is Mass Air Flow (MAF) Circuit Low Input check the wireing, make shure theres a good connections you said that you already replaced this sensor so im going to recomend that you go after the other code first
deal with the oxygen sensor then reset the computer and see what codes come back
The code refers to an oxygen sensor that is no longer detecting changes in fuel delivery by way of sensing exhaust oxygen content. Bank 1, sensor 1, tells you which sensor is bad, in this case, it's the sensor that is mounted before the catalytic converter, on the rear bank of cylinders as you look into the engine compartment. It would really be a good idea to change both pre-cat O2 sensors at this point as they are both twelve years old.
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