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grob1971
Member Since: 21 Aug 2020
Location: Zug (ZG)
Posts: 73
  
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| cold start - Engine Sytem Fault & Special Programs Off |
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Hi All,
I need some expert advise:
The vehicle is a 2008 Discovery 3 with DPF. DPF was fully cleansed a couple of months ago as we had the DPF full message on the screen – after cleansing all error messages gone.
Now, when the weather got colder Engine system fault came up, actually limp mode and special programs off message. Error codes are:
-UNKNOWN-00 (2F)
-UNKNOWN-00 (6C)
I think - based on Disco3.co.uk information - the first is related to EGR. Both EGR's physically attached to the engine, but software patch was applied.
It comes up when the engine is cold – at cold start.
If I restart the entire car with Gaptool it clears the car and no errors. Even yesterday no engine system fault after starting the car.
Earlier I had a FBH error - it did not want to start, but this error was gone after some magic with the gaptool.
Battery voltage: it was 11.8V when when fired the engine then it went up to 13.x V.
Any help will be appreciated.
Robert
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 25th Dec 2023 1:07 pm |
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ds23man
Member Since: 19 Jan 2013
Location: Ainum
Posts: 227
 
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Battery, alternator or both. Citroen DS23IE
Audi A6 2.4 V6 Avant Quatro (1998)
Audi 80 2.6 v6 Cabriolet (1996)
John Deere 4240S
McCormick 323
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| 25th Dec 2023 4:09 pm |
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Leon
Member Since: 26 Apr 2014
Location: Leamington Spa
Posts: 429
 
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Would suspect battery.
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| 25th Dec 2023 4:45 pm |
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TheWojtek
Member Since: 23 Apr 2016
Location: Poznan, Poland
Posts: 80
  
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Yupp, same thing with dad's L319, battery replaced, problem gone. Wojtek
L319: dad's
L320: mine
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| 25th Dec 2023 9:21 pm |
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grob1971
Member Since: 21 Aug 2020
Location: Zug (ZG)
Posts: 73
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all, thanks for the hints. will give a try and get back with the results....
many thanks again and happy holidays for everyone....
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| 25th Dec 2023 9:44 pm |
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grob1971
Member Since: 21 Aug 2020
Location: Zug (ZG)
Posts: 73
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Based on Robbie’s guide I made some further investigation.
Fully charged the battery; after the car went to sleep, measured the following values:
* when, the car was not locked the power usage was ~ 9-10mA
* when the car was locked it went up to ~ 14-15mA
These measures were performed a couple of times, will receive a clamp meter tomorrow and will repeat the process.... Both values are under the threshold of 25mA so I assume no power drain.
Anyway, I ordered a new battery - 100AH 900A EXIDE....
Earlier I had some issues with my Webasto - it did not want to start; with GAPTool i could start it - not sure whether it might have had any impact on cold start ? Any opinion ?
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| 28th Dec 2023 8:29 pm |
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