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451 Diesel Question


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#1 Grumpyb

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Posted 17 January 2014 - 03:13 AM

Since there is no 451 diesel section, I will ask the question here. Does anyone know what the fault code P1408 means.My CDI has had a number of problems but its down to this one now that causes the engine to drop revs to 3000rpm after about a minute of running.I feel sure its related to the EGR system but it would help to have a bit more specific description.Grumpy-b

#2 FlossyTheSmart

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Posted 17 January 2014 - 05:14 AM

P1408 seems to be EGR related, probably it's clogged. See THIS
2005 Pulse Coupe - "Flossy" - Scratch Black (Summer), Stream Green (Winter) with Silver Tridion - Glasses Holder, Cruise Control, Uncle Glenn's Remap, Mirror Triangle Stickers that say "Flossy" from smartsticker.de, side markers that blink with the turn signals, Euro style turn signals in headlights, Angel Eyes, Under seat drawer, CsC Sticker in Rear Window, Wet Okole Seat Covers with driver's side seat warmer, under dash LED lighting, door VIP lighting, LEDs in centre console light and rear light pod, S-Smart Arm Rest, Kenwood amp connected to 5.25" speakers in bass bins, powered subwoofer under passenger seat, Car PC

2006 Passion Cabriolet - Unnamed as of yet - Scratch Black with Silver Tridion - Formerly Diesel Daves - Technine Stage II Remap, HID Headlights and Foglights, MB Star on front


#3 Grumpyb

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Posted 17 January 2014 - 06:56 AM

Thanks for the link.I was astounded by the amount of gunge that was in the EGR system not just carbon but greasy deposits as well. I have already cleaned out the casting directing the gas into the inlet, and recently took out the main EGR valve. No mean feat.This was completely clogged and was blocked. This took away the error code of P1409. Upstream of this on the exhaust side is a round chamber attached to the turbo, not easy to get out but looking at the reasonable condition spare I have (Lower mileage but also a fair amount of internal deposit) mine is probably partially blocked. But this is a terror to get at. Turbo out again I think.It is a shame that Smart dont make the codes available, they stated that I would have to take the car to them and they charge 120 an hour just to get the code. Which aparently they cant give you but can only get while online. Seems a bit far fetched as the clones of Star give such data without being connected to MB.Grumpy-b




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