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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 07-22-2011, 01:33 PM   #1
Gus330vrum
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Lightbulb Experience Beamer drivers w/ Check engine light solution

Hey, i have a 03 325xi... almost done with all my 100k+ EXTREME TUNE UP. =D.. cooling system, control arm, suspension over haul interior and exterior...

But this damm check engine light is killing me.... it goes away and comes Back....

i got OBDII CODE "6" of them.... so i figured i would ask on e46 fanatic, because more brains thinks better then 1 brain. ^,^


P1085-BANK 2 SENSOR 1?

P1343-misfire cylinder 1 with fuel cut off

P0313 The PCM has determined that misfire occurred with low fuel

P0171- idk ???

P0174-BANK 2 SENSOR 1?


6 codes for 1 oxygen sensor upper ONE... next to where u put the oil....

There is not Large vaccum lake.... i sprayed all my intake when car on to check if my RPM GOES UP ND DOWN.... and i took all off and there is no crack....


What could it be?



"Its not spark plus or ignition coil" just had tune up! MOBILE 1 OIL
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Old 07-22-2011, 03:52 PM   #2
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You need more details, see below in bold:

Quote:
Originally Posted by mrlatexxx View Post
Hey, i have a 03 325xi... almost done with all my 100k+ EXTREME TUNE UP. =D.. cooling system, control arm, suspension over haul interior and exterior...

But this damm check engine light is killing me.... it goes away and comes Back....

i got OBDII CODE "6" of them.... so i figured i would ask on e46 fanatic, because more brains thinks better then 1 brain. ^,^


P1085-BANK 2 SENSOR 1? Fuel Control Mixture Lean (Bank 2 Sensor 1)

P1343-misfire cylinder 1 with fuel cut off Misfire Cylinder 1 With Fuel Cut-off

P0313 The PCM has determined that misfire occurred with low fuel

P0171- idk ??? System too Lean (Bank 1)

P0174-BANK 2 SENSOR 1? System too Lean (Bank 2)
Does not sound like you have a vacuum leak at all but a lack of fuel delivery (system too lean). Please check your fuel pump and fuel filter. Run a bottle of Techron through the system to clean out any gunk. Also, if your tank is low, please fill it.
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Old 07-22-2011, 04:09 PM   #3
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Originally Posted by SamDoe1 View Post
You need more details, see below in bold:



Does not sound like you have a vacuum leak at all but a lack of fuel delivery (system too lean). Please check your fuel pump and fuel filter. Run a bottle of Techron through the system to clean out any gunk. Also, if your tank is low, please fill it.


hmm.. i see.... i dont think its the FUEL PUMP because they say when the car COLD START... u can hear a sound from the back... " supposedly its the FUEL PUMP SOUND.... NOW THE FUEL FILTER... i never changed on this car... could that be the problem?

i threw fuel injector "LUCAS" to clean it... when i did OIL CHANGE A WEEK AGO and some ENGINE CLEANER on the NEW OIL.... but seems like its not going to clean... o.o so probably new FUEL filter would help! fking take the codes away! =.= drives u crazyy

Last edited by Gus330vrum; 07-22-2011 at 04:11 PM.
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Old 07-22-2011, 09:38 PM   #4
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At 100k, methinks you do have a vacuum leak due to lean codes on banks 1 and 2. Have you checked your intake boot (the lower one commonly cracks on tube to IACV and will cause the CEL to to go out and back on), secondary air vacuum line commonly breaks under bank 1 sensor 1 plug. there's also the matter of the DISA valve the seal gets weak over time. Also, I hope you didn't put a fuel additive in with nearly an empty tank of fuel (misfire city, 80% alcohol content on average)

Last edited by biggy8481; 07-22-2011 at 09:41 PM.
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Old 08-03-2011, 09:43 PM   #5
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I'm having the same issue I replaced all the intake boots and checked all hoses and everything is fine I'm gonna replace my fuel filter hopefully that is the issue.
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Old 08-03-2011, 09:53 PM   #6
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I'm having the same issue I replaced all the intake boots and checked all hoses and everything is fine I'm gonna replace my fuel filter hopefully that is the issue.


yeaa! i think its the fuel filter too! on mine... i never changed it... since 70k and now 130k... i think its about time to change the fuel filter... im thinking thats the problem. =D


mine arrives 2morrow.... so ill get back with and answer to this..
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Old 08-03-2011, 10:55 PM   #7
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yeaa! i think its the fuel filter too! on mine... i never changed it... since 70k and now 130k... i think its about time to change the fuel filter... im thinking thats the problem. =D


mine arrives 2morrow.... so ill get back with and answer to this..
Cool let me know if it solves your issue
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Old 08-03-2011, 11:12 PM   #8
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Cool let me know if it solves your issue
yea... do you have spacers on your wheel setup? what size?
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Old 08-04-2011, 03:56 PM   #9
BigLouie
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Fuel filter location

I know this is a really dumb question, but I can't find the fuel filter on an '04 330xi. Can anybody give me a place to start looking (other than under the car, tried that already).

Thanks!
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Old 08-04-2011, 04:44 PM   #10
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Per Bentley: "The fuel filter is located beneath the center of the car, approximately under the driver's seat. A protective cover must be removed to access the filter."

"" -Drain filter from inlet side into a container and inspect drained fuel. Check for rust, moisture and contamination.
When replacing fuel filter:
*Clamp filter inlet and outlet hoses to lessen fuel spillage.
*Loosen center clamping bracket and hose clamps on either end of filter.
*Note arrow or markings indication direction of flow on new filter.
*Install new filter using new hose clamps.

NOTE-- When installing fuel filter cover, take care to reinstall foam rubber seal in front of cover correctly to prevent flooding of filter with rain splash water. ""
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Old 08-04-2011, 05:37 PM   #11
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Okay! so Today i have changed my Fuel filter! Check engine light still on.... im give a 80mile drive after disconnecting both +/- batter cable located on the back! "trunk".. lol... Let's see what happens! Goes away and never comes back! =D
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Old 08-04-2011, 05:56 PM   #12
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Originally Posted by mrlatexxx View Post
Okay! so Today i have changed my Fuel filter! Check engine light still on.... im give a 80mile drive after disconnecting both +/- batter cable located on the back! "trunk".. lol... Let's see what happens! Goes away and never comes back! =D
You are probably going to have to get the codes cleared.
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Old 08-04-2011, 07:18 PM   #13
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yea... do you have spacers on your wheel setup? what size?
Nope no spacers these are stock m68 17s running 225 front and 245 rear
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Old 08-04-2011, 09:00 PM   #14
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Thanks

Fred the Puppy,

Thanks!

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Old 08-11-2011, 05:30 PM   #15
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Cool

Quote:
Originally Posted by lvlikeWho View Post
Nope no spacers these are stock m68 17s running 225 front and 245 rear

I see... do you have any info on how well does spacer's function on AWD system... any rules? for not too...


any1 know the ANSWER?




btw-> Fuel pump changed ... looked like never changed before... a lot of black/Dark Liquid on the gas... but some how other side would come kinda invisible but orange mix w yellow kinda look on the floor...

NOW i feel-> that BMW touch to the pedal response slight touch but a firm engine response.... obvious... gas is the combustion for the Engine.. lol =D


check engine erased... that sucka saying a sleep.. i would HOPE so*
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Old 08-12-2011, 07:24 AM   #16
Gus330vrum
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Quote:
Originally Posted by SamDoe1 View Post
You need more details, see below in bold:



Does not sound like you have a vacuum leak at all but a lack of fuel delivery (system too lean). Please check your fuel pump and fuel filter. Run a bottle of Techron through the system to clean out any gunk. Also, if your tank is low, please fill it.
u were riight! the check engine light is gone... after new fuel filter! =D

Last edited by Gus330vrum; 08-12-2011 at 07:10 PM.
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Old 08-12-2011, 07:10 PM   #17
Gus330vrum
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Originally Posted by mrlatexxx View Post
u were riight! the check engine light is gone... after new fuel filter! =D
take my words back!

i i cleared it and it came back 3 codes


p0300
p1348
p1343
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Old 08-20-2011, 02:48 PM   #18
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Old 08-20-2011, 04:36 PM   #19
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You could put a manometer on your fuel pump to measure the pressure.
Correct me if I'm wrong, but I think the pump should put out around 5 bar's of pressure.

You can connect a manometer on the front of the fuel rail (take of the little nut at the end) or lift up your back seat and connect the manometer directly to the pump (disconnecting the fuel line of course)

A few years back I had some of those codes, and it turned out to be the intake rubber boot that had a big crack/hole in it.

Haven't read the thread well, but would it make sense to swap ignition coils from row one to row two, to see if the codes shift with them...?

Also, there is a few vacuum hoses (and blinding plugs) going in to the back of the intake manifold that could be cracked.

Along with a few other small hoses for the gas vapor from the gas tank going in to the manifold and the carbon filter.
...probably not but thought I should mention it.

And this is way out there, but maybe a cluttered MAF sensor...? No.

Last edited by Tele; 08-20-2011 at 04:40 PM.
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Old 08-20-2011, 04:52 PM   #20
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Just browsing new posts. Many more guys in General for this sort of thing...just saying.

If you search for the meaning of those codes, I'll help you figure out what they might mean, but I don't have the codes memorized!
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