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Old 20-02-2012   #1
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Hi all. po141

Hi all new here, bought a multipla 1.6 x reg, great family mpv. The check engine light is on. put it on obd2 and code po141 o2 sensor heater circuit malfunction bank 1 sensor 2. i know this is the lambda but which one is this so i can replace it. any help will be great. many thanks.
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Old 22-02-2012   #2
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Re: Hi all. po141

I've got a diesel so Lambda's ain't my thang but if you have two, try disconnecting one of them, this should show a fault in the same format which will tell you which one is which?
To be absolutely sure, re-connect the first one, clear the fault and then disconnect the second one, hopefully second fault will show a different sensor.
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Last edited by momoe; 22-02-2012 at 14:21.
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Old 23-02-2012   #3
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Re: Hi all. po141

Thanks momoe will try that tomorrow. I have found 1 lambda on the exhaust manifold this is the pre cat so there should be another one after the cat the post cat lambda. will post what happens when i try what you say. many thanks.
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Old 03-03-2012   #4
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Talking Re: Hi all. po141

Hi lambda replaced no more trouble codes.
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