 | Home > Puma (Tdci) > Intermittent power power loss 2.4tdci |
 
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2147  
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Have you changed the VCV ? Do you get any Diagnostic Trouble Codes (DTC’s).
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16th Nov 2024 10:01pm |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19  
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Vcv would of been changed a couple of years ago, not getting erratic tick over so thought it would not be VCV as it sits well on tick over.
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16th Nov 2024 10:06pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17610 
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Check for DTCs and if none change the VCV.
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16th Nov 2024 10:42pm |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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Thanks have got one on standby after lastime👍
Last edited by Defender du on 17th Nov 2024 7:26am. Edited 1 time in total |
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17th Nov 2024 6:48am |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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 Click image to enlarge These are the Dtc |
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17th Nov 2024 7:25am |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2147
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Given you have changed the injectors and the fuel filter, what’s the wiring like to the injectors ? as I’m thinking the P121C code is pointing to the culprit.
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17th Nov 2024 4:07pm |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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Thanks Ian will have a look👍👍
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17th Nov 2024 4:28pm |
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| Trev Member Since: 01 Jul 2023 Location: Fife Posts: 11  
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I had a similar issue with mine, I would be trundling along and it would just lose power and acceleration would be extremely sluggish. If I pulled over, switched the engine off then on again the problem would go away for a while. In my case it was the turbo actuator that was at fault.
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17th Nov 2024 9:03pm |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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Actuator seams ok have been putting some light oil for a few months and there is movement. The problem happens when you put your foot down and it is like limp mode. If I pull over and try to rev struggles to go above 2000rpm.
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17th Nov 2024 9:22pm |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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Update, Indy has had a good look as the problem was not happening all the time and took it home to give it a chance to heat up and it happened, like the ignition being turned off.
Fuel pressure checked all fine but they did hear a buzzing coming from engine bay when switched off, it was the solenoid on the EGR no codes for the egr and it has been going through them!. Have had new egr and stage 1 Alive tune and blank and 700 miles of no kangarooing!!🤞 Last edited by Defender du on 26th Feb 2025 10:11am. Edited 1 time in total |
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25th Feb 2025 9:14pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2147
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Glad you identified the issue. It’s really weird that you did not get any EGR based codes as EGRs in the vast majority of cases do trigger DTC’s if they develop a fault.
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25th Feb 2025 9:29pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 634
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Well 700 miles fault free is encouraging..and i hope that is it..
My only concern would be that it is quite usual to hear the egr valve cycling on a lot of vehicles when the ignition is turned off.. just a cleaning process to help prevent carbon build up on the valve seat... |
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26th Feb 2025 10:14am |
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| Defender du Member Since: 20 Feb 2024 Location: Wales Posts: 19
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The egr was cycling when switching off but there was a buzzing from the solenoid after the cycling👍
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26th Feb 2025 10:43am |
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