Note: Allpar does not take responsibility for the veracity of any information or opinions here, does not claim expertise, and is not responsible for any consequences. Please proceed at your own risk.



Oxygen sensor issues

oxygen sensorThe oxygen sensor measures the amount of oxygen in the exhaust, telling the computer whether there is too much or too little fuel being injected. In four cylinder cars, there are usually two sensors — one up front, and a second sensor that checks on the first and on the efficiency of the catalytic converter. In cars with V-type engines, there can be two banks of sensors, one for each bank of cylinders. There are separate codes for each sensor - bank 1 and bank 2, sensor 1 (forward) and sensor 2 (aft).

In some cases, oxygen sensor codes are thrown when there really is a problem somewhere else. Sometimes they are thrown when there is an issue with the wiring or grounding.

Oxygen sensor heaters

Some cars have two banks of oxygen sensors. The oxygen sensor is heated at startup to get it functioning properly as quickly as possible — hence the "heater control circuit" errors.

  • P0030 Oxygen Sensor Heater Control Circuit (Bank 1, Sensor 1)
  • P0031 Oxygen Sensor Heater Circuit Low Voltage (Bank 1, Sensor 1)
  • P0032 Oxygen Sensor Heater Circuit High Voltage (Bank 1, Sensor 1)
  • P0036 Sensor heater relay problem
  • P0036 Oxygen Sensor Heater Control Circuit (Bank 1, Sensor 2)
  • P0037 Oxygen Sensor Heater Circuit Low Voltage (Bank 1, Sensor 2)
  • P0038 Oxygen Sensor Heater Circuit High Voltage (Bank 1, Sensor 2)
  • P0050 Oxygen Sensor Heater Circuit (Bank 2, Sensor 1)
  • P0051 Oxygen Sensor Heater Circuit Low Voltage (Bank 2, Sensor 1)
  • P0052 Oxygen Sensor Heater Circuit High Voltage (Bank 2, Sensor 1)
  • P0056 Oxygen Sensor Heater Circuit (Bank 2, Sensor 2)
  • P0057 Oxygen Sensor Heater Circuit Low Voltage (Bank 2, Sensor 2)
  • P0058 Oxygen Sensor Heater Circuit High Voltage (Bank 2, Sensor 2)

Other oxygen sensor error codes

“Slow response” indicates a “lazy” sensor which should be replaced. “Heater performance” errors involve the built in electric sensor heater which gets it into operating mode more quickly.

  • P0130 Oxygen Sensor Circuit Closed Loop (CL) Performance (Bank 1, Sensor 1)
  • P0131 Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 1)
  • P0132 Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 1)
  • P0133 Oxygen Sensor Slow Response (Bank 1, Sensor 1)
  • P0134 Oxygen Sensor Circuit Insufficient Activity (Bank 1, Sensor 1)
  • P0135 Oxygen Sensor Heater Performance (Bank 1, Sensor 1)
  • P0136 Oxygen Sensor Circuit (Bank 1, Sensor 2)
  • P0137 Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2)
  • P0138 Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2)
  • P0139 Oxygen Sensor Slow Response (Bank 1, Sensor 2)
  • P0140 Oxygen Sensor Circuit Insufficient Activity (Bank 1, Sensor 2)
  • P0141 Oxygen Sensor Heater Performance (Bank 1, Sensor 2)
  • P0142 Oxygen Sensor Circuit Bank 1 Sensor 3
  • P0143 Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 3
  • P0144 Oxygen Sensor Circuit High Voltage Bank 1 Sensor 3
  • P0145 Oxygen Sensor Circuit (Bank 1, Sensor 2) Slow Response
  • P0146 Oxygen Sensor Circuit Insufficient Activity Bank 1 Sensor 3
  • P0147 Oxygen Sensor Heater Performance Bank 1 Sensor 3
  • P0150 Oxygen Sensor Circuit Closed Loop (CL) Performance (Bank 2, Sensor 1)
  • P0150 Oxygen Sensor Circuit (Bank 2, Sensor 1)
  • P0151 Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 1)
  • P0152 Oxygen Sensor Circuit High Voltage (Bank 2, Sensor 1)
  • P0153 Oxygen Sensor Slow Response (Bank 2, Sensor 1)
  • P0154 Oxygen Sensor Circuit Insufficient Activity (Bank 2, Sensor 1)
  • P0155 Oxygen Sensor Heater Performance (Bank 2, Sensor 1)
  • P0156 Oxygen Sensor Circuit (Bank 2, Sensor 2)
  • P0157 Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2)
  • P0158 Oxygen Sensor Circuit High Voltage (Bank 2, Sensor 2)
  • P0159 Oxygen Sensor Slow Response (Bank 2, Sensor 2)
  • P0160 Oxygen Sensor Circuit Insufficient Activity (Bank 2, Sensor 2)
  • P0161 Oxygen Sensor Heater Performance (Bank 2, Sensor 2)
  • P0162 Oxygen Sensor Circuit Bank 2 Sensor 3
  • P0163 Oxygen Sensor Circuit Bank 2 Sensor 3 Low Voltage
  • P0164 Oxygen Sensor Circuit Bank 2 Sensor 3 High Voltage
  • P0165 Oxygen Sensor Circuit Bank 2 Sensor 3 Slow Response
  • P0166 Oxygen Sensor Circuit Bank 2 Sensor 3 No Activity Detected
  • P0167 Oxygen Sensor Heater Circuit Bank 2 Sensor 3
  • P1130 Oxygen Sensor Circuit Low Variance (Bank 1, Sensor 1)
  • P1131 Oxygen Sensor Circuit Low Variance (Bank 1, Sensor 2)
  • P1132 Oxygen Sensor Circuit Low Variance (Bank 2, Sensor 1)
  • P1133 Oxygen Sensor Insufficient Switching (Bank 1, Sensor 1)
  • P1134 Oxygen Sensor Transition Time Ratio (Bank 1, Sensor 1)
  • P1135 Oxygen Sensor Lean Mean (Bank 1, Sensor 1)
  • P1136 Oxygen Sensor Rich Mean (Bank 1, Sensor 1)
  • P1137 Oxygen Sensor (Bank 1, Sensor 2) Lean System or Low Voltage
  • P1138 Oxygen Sensor (Bank 1, Sensor 2) Rich or High Voltage
  • P1139 Oxygen Sensor Insuff. Switching (Bank 1, Sensor 2)
  • P1140 Oxygen Sensor Transition Time Ratio (Bank 1, Sensor 2)
  • P1141 Oxygen Sensor Heater Control Circuit (Bank 1, Sensor 2)
  • P1143 Oxygen Sensor Bank 1 Sensor 3 Lean System or Low Voltage
  • P1144 Oxygen Sensor Bank 1 Sensor 3 Rich or High Voltage
  • P1145 Oxygen Sensor Cross Counts Bank 1 Sensor 3
  • P1153 Oxygen Sensor Insufficient Switching (Bank 2, Sensor 1)
  • P1154 Oxygen Sensor Transition Time Ratio (Bank 2, Sensor 1)
  • P1155 Oxygen Sensor Lean Mean (Bank 2, Sensor 1)
  • P1156 Oxygen Sensor Rich Mean (Bank 2, Sensor 1)
  • P1157 Oxygen Sensor (Bank 2, Sensor 2) Lean System or Low Voltage
  • P1158 Oxygen Sensor (Bank 2, Sensor 2) Rich or High Voltage
  • P1159 Oxygen Sensor Cross Counts (Bank 2, Sensor 2)
  • P1161 Oxygen Sensor Heater Control Circuit (Bank 2, Sensor 2)
  • P1163 Oxygen Sensor Bank 2 Sensor 3 Lean System or Low Voltage
  • P1164 Oxygen Sensor Bank 2 Sensor 3 Rich or High Voltage
  • P1165 Oxygen Sensor Cross Counts Bank 2 Sensor 3
  • P1195 - 1/1 Oxygen Sensor Slow During Catalyst Monitor
  • P1196 - 2/1 Oxygen Sensor Slow During Catalyst Monitor
  • P1197 - 1/2 Oxygen Sensor Slow During Catalyst Monitor
We make no guarantees regarding validity, accuracy, or applicability of information, predictions, or advice. Please read the terms of use and privacy policy. Copyright © 1994-2000, David Zatz; copyright © 2001-2016, Allpar LLC (except as noted, and press/publicity materials); all rights reserved. Dodge, Jeep, Chrysler, Ram, and Mopar are trademarks of Fiat Chrysler Automobiles.


Jeep sets its world record a month early

This is the last Chrysler 200

Meet the first retail hybrid minivan
canada
Canadian sales dropped a little in hot market

All Mopar Car and Truck News



Will the Wagoneer be Grand? Shelby Dakota: hot or not? Washer fluid bags! Chrysler Crossfire: fauxpar?

Sebring vs 200: Worth a name change? 1976: Forty years later Alfa CUV, up close