Question about Cars & Trucks
I twice change o2 sensor, but error code p0141 still on. Can anyone tell me what might be the reason
It is the O2 Sensor. Are you sure you replaced the correct one or have you replaced all of them. My vehicle has four. Based on what I have found it appears your car has four also. Have you replace those or just the one you can see. You will have one each at the Catalytic converters, whioch are called the down stream sensors. You will also have two upstream sensors on the exhaust pipes near the exhaust manifolds.
Posted on Nov 22, 2013
Testimonial: "my car have only 2 O2 sensor (before and after cat). i change only one sensor, which is after cat."
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Posted on Jan 02, 2017
A code P0135 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 wire harness.
What to do; = Repair 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)
A code P0141 may mean that one or more of the following has happened:
Same as above: mentioned in P0135.
What do do is the same as above, so i am leaning towards and faulty wire harness since you have replaced both O2 sensors. Make sure the wire harness has no break in it or crushed connection clips. The other thing to look for is a bad fuse that is used to heat up the O2 sensor. It may not say O2 sensor on it, it may piggy back off something else so check all the fuse and make sure the O2 has a good ground and not corroded. Good luck and hope this helps.
Posted on Jun 25, 2009
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