Hi there:DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155.
A code P0155 may mean that one or more of the following has happened:
Possible Solutions
Use this link on previous answer to check diagra location.
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Hi there: DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155.
A code P0155 may mean that one or more of the following has happened:O2 Heater element resistance is high
Internal short or open in the heater element
O2 heater circuit wiring high resistance
open or short to ground in the wiring harness
Possible SolutionsRepair short or open or high resistance in wiring harness or harness connectors
Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
Use this link on previous answer to check diagra location.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
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SOURCE: 2002 Ford Windstar Oxy Sensors
There are issues with upper/lower intake gaskets on this engine. Also make sure you don't have a tube disconnected from the air intake between the air filter box and thottle body. If everything is connected, I would be renewing the upper/lower intake gaskets. This will cause lean codes to be set, and you may have noticed a ratty idle on cold start-up. Hope this helps. Good Luck and please leave rating. Thanks
SOURCE: I have a 2002 Dodge
P0152 is o2 sensor 2/1 voltage high. Sensor 2/1 is your right bank upstream o2 sensor located in the manifold. Make sure it is pluged in.
SOURCE: 2002 Ford Windstar Error Code P1131 And P1151
those two codes are for the o2 sensors. both are the upstream sensors on the front and rear banks. so they are desinagted bank 1 sensor 1 and bank 2 sensor 1. them most common cause for this is faulty o2sensors , bad gas and of a poor running engine. so if your car runs good (no misfire) and gas is ok then replace the o2sensor witch is the very most common cause.
Testimonial: " Help With Problem But Where Are These O2 Sensor"
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