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total power loss 2.2 idtec

Whiteakita

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Bishop auckland
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2009 accord idtec
hi all, my car has just lost nearly all power where it will barely pull away and top speed of 25mph.
i have checked fault code which is p0402 egr high flow.
does anyone know what this means and how to fix it ?
im guessing the egr valve is blocked and needs cleaning, ive looked down the back of the engine and it looks a real pig to get at.
there also seem to be 2 egr valves 1 on the left and on the right of the engine.
i have had limp mode in cars before but nothing that has taken away as much power as this, it would not drive up a incline.
any help would be great.
 

csak1981

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Accord Tourer 8th Ge
Yep diesel fumes coming into cabin is a symptom. You'll notice it when idling at traffic lights then with airflow produced from car moving it will go away
 

stellamon

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Shrewsbury
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Accord 2.2i-DTEC
Mine was leaking when I bought it a while back but the car still drove okay, just fumes all over the place. This must be something else, or a combination of faults, not too helpful I know.
Does the turbo whistle when you accelerate?
 

csak1981

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Yep mine was also leaking when i got it. If yours is a bigger spilt then its probably to much so it's thrown a code. I would think if the split is bigger then you should be able to smell the fumes as mine was quite bad with a small split and no code
 

F6HAD

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Halifax
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2009 Accord IDTEC
Not seen this before on an idtec. I believe it means your egr is stuck open and not closing properly. Has the ecu been messed with? Dpf or egr removed? Drop me a line if you want to book for a diagnostic session
 

Gozzy

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Mine failed an MOT due to a cracked EGR pipe. The local main dealer wanted over £400 to replace it. I got Honda UK to authorise a free of charge replacement given that it’s a known fault. Apparently they’d extended the warranty on that part. I was just a couple of days inside it. Phew. Didn’t have any noticeable loss of power, but did see a drop in fuel economy and noticed a nasty smell of diesel fumes in the cabin.
 
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