 | Home > Puma (Tdci) > MIL Illuminated with code P0402 |
 
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20418  
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Do you have a snorkel or rai?
There is a code that can be known to be nuisance of similar nature related to this, some people get it, others donโt. Iโve not had one with a Safari snorkel, Iโve heard of others with a Mantec rai that have. $W33T $0U7H3RN $UG4R ๐ฌ๐ง๐ด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐ด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐ฎ๐ช๐บ๐ธโฝ๏ธ๐ข๏ธโ๏ธ๐งฐ๐ช |
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7th Dec 2024 11:24am |
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| RACH-OB Member Since: 07 Dec 2024 Location: Geelong Posts: 5  
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Safari snorkel fitted. ๐
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7th Dec 2024 11:27am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20418
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Might pay you to replace the MAF sensor, in the mean time clean it with brake or MAF cleaner.
(Donโt touch or disturb elements). As it came back, it seems a bit more persistent but there is presence of nuisance codes of that nature. The 2.4 has had it before as well. Presumably you get a lot of dust, a pre cleaner might be of interest or do you already have one? $W33T $0U7H3RN $UG4R ๐ฌ๐ง๐ด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐ด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐ฎ๐ช๐บ๐ธโฝ๏ธ๐ข๏ธโ๏ธ๐งฐ๐ช |
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7th Dec 2024 1:25pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20418
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Oh and welcome to Defender2.net
 $W33T $0U7H3RN $UG4R
๐ฌ๐ง๐ด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐ด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐ฎ๐ช๐บ๐ธโฝ๏ธ๐ข๏ธโ๏ธ๐งฐ๐ช |
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7th Dec 2024 1:25pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17427 
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Is the EGR just mapped out, or is it in addition blanked with a plate? I am wondering if perhaps it is stuck partly open.
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7th Dec 2024 2:59pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2027
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Which company did the engine map and EGR delete ? As itโs worth giving them a call.
Also in addition to your MAF sensor give your MAP sensor and Air Charge sensor a clean. Plus check wiring to all. Locations in this post for 2.4 and 2.2. https://www.defender2.net/forum/topic69503.html?highlight=sensor Also check wiring and connection to EGR valve. |
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7th Dec 2024 4:57pm |
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| RACH-OB Member Since: 07 Dec 2024 Location: Geelong Posts: 5
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@Ianh I actually reached out to the workshop that did the delete, and unfortunately they replied to my email inquiry by telling me to contact the original owner of the car as he could tell me what other work was done to the vehicle. "Unfortunately, it is not possible for us to pinpoint what the concern can be as we have only done the EGR delete & blank on the Defender with no concerns since we done it in September."
As this whole EGR thingy is all very new to me I didn't know how to respond to that. All that is on the receipt is - 'Customer also requested EGR delete, we extracted the ๏ฌle and sent it to our code writer to rewrite the ๏ฌle and send it back for us to upload to the ECU' Gave the MAF sensor a clean 2 days ago and fault returned (slow process of elimination) so I will clean the MAP and air sensor as suggested. ๐ |
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7th Dec 2024 7:58pm |
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| RACH-OB Member Since: 07 Dec 2024 Location: Geelong Posts: 5
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EGR had delete and blank done in September this year. If there is a physical blank and delete how would the ECU still pick up the fault? Is it only the EGR that can throw the same fault code? |
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7th Dec 2024 8:05pm |
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| RACH-OB Member Since: 07 Dec 2024 Location: Geelong Posts: 5
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I gave the MAF sensor a clean yesterday (as far as my untrained eye goes it looked very clean) and after that the MIL reappeared. Replace could be an option. ๐ As far as the pre-cleaner goes I am unsure as to whether I have one. What does that bad boy look like? And where would I find him? |
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7th Dec 2024 8:08pm |
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