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 Posted: Fri Jun 08, 2012 4:02 pm |
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Joined: Feb 12, 2012
Posts: 174
Trade Rating: +2
Location: Sheffield
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Hi i have the following error codes wondering if anyone could shed some light on them and whats needed to repair, thanks.
p0170 - fuel trim malfunction bank 1
p0141 - oxygen sensor heater circuit malfunction bank 1 sensor 2
p0135 - oxygen sensor heater circuit malfunction bank 1 sensor 1
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Last edited by sulli on Sat Jun 16, 2012 12:54 pm; edited 1 time in total
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Posted: Fri Jun 08, 2012 4:13 pm |
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Joined: Feb 16, 2011
Posts: 64
Trade Rating: 0
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I'm guessing your last 2 codes relate to Lambda sensors, but I can't be certain.
Are these existing codes, or have you cleared them and these have come back?
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Posted: Sat Jun 09, 2012 12:11 am |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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The heater supply circuits to both your O2 sensors are not working so either you have a supply/ earth problem to them or both of them have broken heaters so they will not be working properly when the heater is required (very common fault).
Most likely because they are not working properly then the ECU is having to put fuel trims so high or low that it has recorded an out of limits error
So, I'd want to check if the voltage and earth are being supplied to the O2 sensors and if that's ok then it's time for two new O2 sensors
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Posted: Sat Jun 09, 2012 2:25 am |
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Joined: Feb 12, 2012
Posts: 174
Trade Rating: +2
Location: Sheffield
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Ok, thanks. I have cleared them for the time being, will have to see if they come back.
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