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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 11-08-2012, 08:16 PM
chilo746 chilo746 is offline
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My BMW is really acting up. Turn on car it idles really rough some lights on the dash turns on while idling bad, like if shutting down black smoke comes out and if I try to give it gas it dies out, starts back up and it cranks for longer than usual, replace the MAF sensor, throttle body, and still the same does it need to be reprogram the ecu???
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  #2  
Old 11-08-2012, 08:41 PM
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halltristan halltristan is offline
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Have you checked the battery? Same symptoms happened to me recently with a near dead battery. If that isn't the case, you need to pull a couple plugs and see if they've been flooded.
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Old 11-08-2012, 09:40 PM
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Fast Bob Fast Bob is online now
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Quote:
Originally Posted by chilo746 View Post
My BMW is really acting up. Turn on car it idles really rough some lights on the dash turns on while idling bad, like if shutting down black smoke comes out and if I try to give it gas it dies out, starts back up and it cranks for longer than usual, replace the MAF sensor, throttle body, and still the same does it need to be reprogram the ecu???
Using the SEARCH function, read up a bit on what happens when your CVV is failing.....that`s one strong possibility, especially if the plugs are oily.
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Old 11-08-2012, 09:48 PM
chilo746 chilo746 is offline
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Originally Posted by halltristan View Post
Have you checked the battery? Same symptoms happened to me recently with a near dead battery. If that isn't the case, you need to pull a couple plugs and see if they've been flooded.
Yes the battery is new And spark plugs are not flooded but they are really black
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Old 11-08-2012, 10:21 PM
chilo746 chilo746 is offline
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Plugs are not oily
I'm guessing about the programming the ecu?
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Old 11-08-2012, 10:21 PM
chilo746 chilo746 is offline
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Battery is new, spark plugs, starter, engine mounts,
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Old 11-08-2012, 10:37 PM
heztheone heztheone is offline
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what about fuel filter, air filter and alternator?
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Old 11-09-2012, 12:24 AM
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Quote:
Originally Posted by chilo746 View Post
spark plugs are not flooded but they are really black
Quote:
Originally Posted by chilo746 View Post
Plugs are not oily
Black plugs means they`re being fouled by oil....a "normal" plug color is greyish-tan.
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  #9  
Old 11-09-2012, 03:18 PM
GoForthFast GoForthFast is offline
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Quote:
Originally Posted by chilo746 View Post
Plugs are not oily
I'm guessing about the programming the ecu?
Keep guessing rather than listening to and responding to the advice you already got here from someone who knows years more than you do about e46's when he says to consider the CVV.
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Old 11-10-2012, 05:27 AM
heztheone heztheone is offline
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Originally Posted by GoForthFast View Post
Keep guessing rather than listening to and responding to the advice you already got here from someone who knows years more than you do about e46's when he says to consider the CVV.
easy on the new guy
OP, ur ECU does not need reprogramming, it has nothing to do with it. if the symptoms u posted are exactly what's happening, check the troubleshooting provided below. and get the car scanned, there might be some codes.
report back when u have further details to go from there
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  #11  
Old 11-10-2012, 10:48 PM
GoForthFast GoForthFast is offline
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easy on the new guy
Why, is he nine years old? Or English is his second language?
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