A code P0402 most likely means one or more of the following has happened: -- The DPFE (differential pressure) sensor is faulty and needs to be replaced. -- There is a blockage in the EGR (most likely carbon buildup) -- The EGR valve is faulty. -- The EGR valve may not be opening due to a lack of vaccuum.
peugeot 307 egr problem. Hi all i am a newbie on here so forgive me if this is in the wrong place. To cut long story short i have a 2007 307 1.6 hdi 110bhp with 65k Miles on clock which has suffered recently from juddering in low revs especially noticable following other traffic in 3rd/4th gear under 2000rpm.
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peugeot 308 1.6 hdi egr valve problems
