warm up catalyst below threshold bank 1 Please let me know what has to be replaced. What is the problem? That is a heated o2 sensor problem o2 sensor should be replaced about every 80,000-100,00 miles
...O2 sensor while you're at it. One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper ...
?? Your number 1 O2 sensor is bad replace it. this is the O2 sensor attached to your headers. Could be faulty sensor or the air/fuel ratio is offset. But replace the sensor its not running effeciently
...o2 sensor is detecting low oxygen in exhaust problem can be cat conv going bad---o2 sensor faulty-and or bad spark plug ....as to the p0441 evap system[-evap emissions control system incorrect purge ...
O2 sensor while you're at it.One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper
...SolutionsMeasure the voltage at the oxygen sensor on Bank 1 (the rear sensor, or the sensor after the converter). In fact, it would be a good idea to test each oxygen O2 sensor while you're at
...O2 sensor while you're at it. One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's ...
...sensor for dirt and replacing ignition coils. What else could we be missing? P0421....Warm Up Catalyst Efficiency Below Threshold (Bank 1) check the heater circuits on the O2 sensors ,the two wires ...
...O2 sensor while you're at it. One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper ...
Question about Mitsubishi Lancer
...O2 sensor and the car was running alot better for about a day. Now the light is back on and is idling funny. Sometimes high and sometimes low. You can't guess with this vehicle take it to Auto-Zone ...
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