Home > Technical (L322) > What parameters trigger DTC? (P0401-00) |
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Ajmngn Member Since: 25 May 2021 Location: Gloucestershire Posts: 183 |
So, every DTC has a range of parameters that will cause it to trigger. My question: is there a list of parameters/sensor readings that can let you know what might trigger a DTC?
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1st May 2023 11:35pm |
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DrRob Member Since: 16 Apr 2015 Location: Petersfield, Hampshire Posts: 4219 |
Have you looked at the DTC chapter in the Workshop Manual? Free on the Wiki. 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
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2nd May 2023 7:53am |
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jimmie Member Since: 19 Jul 2014 Location: Warsaw Posts: 147 |
put borescope camera inside egr tube and look gor soot. If you have bad / old injectors then it will give lot of it. |
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2nd May 2023 8:01am |
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Ajmngn Member Since: 25 May 2021 Location: Gloucestershire Posts: 183 |
Thanks for the replies both. There’s little useful detail in the DTC Documents sadly. As I said in my OP, I’m not worried about the EGR as it’s not even a year old.
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2nd May 2023 8:16am |
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DrRob Member Since: 16 Apr 2015 Location: Petersfield, Hampshire Posts: 4219 |
There are a few places now that can "delete" the EGR and DPF 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
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2nd May 2023 2:08pm |
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JNC Member Since: 23 Feb 2020 Location: UK Posts: 292 |
Was the vacuum actuator changed as part of EGR valve?
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16th May 2023 11:23pm |
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Ajmngn Member Since: 25 May 2021 Location: Gloucestershire Posts: 183 |
I have had the vacuum actuator changed when the new EGR was fitted. I haven't looked at the solenoid yet, but will see how easy it is to access when I get a chance to have a look. I assume you mean part no.10 on the picture?
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17th May 2023 11:17am |
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Ajmngn Member Since: 25 May 2021 Location: Gloucestershire Posts: 183 |
So, an interesting development this evening…
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17th May 2023 10:09pm |
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