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EGR code Po2355-2 and Po401

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Old 07-07-2016, 05:34 PM
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2007 ml320
EGR code Po2355-2 and Po401
I had this on my 2007 ML320 CDI. I had codes for air mass too large and also EGR insufficieny. After much research I found that the pipe from the EGR to the MAF ( I think it is the MAF) was plugged. Pipe was 3 bolts to MAF and then the other end just slid out. Was a carbon buildup oil. Scraped it out and washed with carb cleaner. So far so good!
Attached Thumbnails EGR code Po2355-2 and Po401-img_3180.jpg   EGR code Po2355-2 and Po401-img_3184.jpg   EGR code Po2355-2 and Po401-img_3183.jpg   EGR code Po2355-2 and Po401-img_3181.jpg   EGR code Po2355-2 and Po401-img_3182.jpg  

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Old 08-28-2023, 09:29 AM
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W164 Mercedes ML 320
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Just found your post from 2016. Thank you for a detailed post with photos. Just cleared my erg problem thanks to Google and you!!!
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