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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 09-29-2012, 06:11 AM
mystic.bertie mystic.bertie is offline
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Location: scotland
 
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Mein Auto: 320d
Error Code 4580 - Problem Still There

320d manual 2002 saloon remapped, full decat

i still have error code 4580 Rail Pressure Sensor - Plausibility -Pressure too High, according to the data on inpa my fuel pressure is too high in my fuel rail. I replaced the fuel rail, sensor and regulator with a second hand one from a 2007 320d. It improved it a bit, before the engine light came on as soon as i started the engine but now it only comes on when i drive it and it goes above 2000 revs as if when the turbo is kicking in. Due to my turbo packing in it has been replaced with a refurbished unit but this error remains.

so can anyone suggest what to check next, google searches reveal very little worth mentioning

so things been done -
checked fuel supply and return pipes for blockage, none found
replaced fuel filter
replaced fuel rail with sensor and regulator
replaced turbo (unrelated)

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  #2  
Old 10-02-2012, 01:59 PM
mystic.bertie mystic.bertie is offline
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bump, surely someone has a little more knowledge on this??
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  #3  
Old 10-02-2012, 03:04 PM
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Fast Bob Fast Bob is online now
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Originally Posted by mystic.bertie View Post
bump, surely someone has a little more knowledge on this??
This is a U.S.-based Forum....BMW never sold diesel E46s on this side of The Pond, therefore they are pretty much like UFOs to us....
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Old 10-02-2012, 03:16 PM
mystic.bertie mystic.bertie is offline
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Quote:
Originally Posted by Fast Bob View Post
This is a U.S.-based Forum....BMW never sold diesel E46s on this side of The Pond, therefore they are pretty much like UFOs to us....
ok cheers for the heads up i did not know that diesels were not sold over the pond. Im not getting any response from the uk forum so having to try further afield
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