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  #1  
Old 08-22-2019, 11:49 AM
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E53 M54B30 CEL

I have a SES.

Car runs very good. Some hiccups or rough running a couple times a month. Sometimes the SES even extinguishes on its own. Not for too long though.

Codes read by schwaben code reader
P0313/$12 Misfire Detected With Low Fuel
P0300/$12 Random Multiple Cylinder Misfire Detected
P0174/$12 System Too Lean Bank 2
P0171/$12 System Too Lean Bank 1
PO 301 /$12 Cylinder 1 Misfire Detected
PO 302 /$12 Cylinder 2 Misfire Detected
PO 303 /$12 Cylinder 3 Misfire Detected

Failing fuel pump or?

Thanks in advance for your thoughts.

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #2  
Old 08-22-2019, 02:18 PM
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Effduration is on a distinguished road
Has there been any work on intake or fuel injectors ?

The first thing I would do is look for any cracked/ split rubber in the intake boots. Also check the hose and fittings that go to CCV (from valve cover) and brake booster (from intake) Sounds like you might have an intake leak. A smoke test would be my second step.
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  #3  
Old 08-23-2019, 12:25 PM
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Thanks for the reply.

No work on intake or fuel injectors while this X5 was in my possession for the last approximately 10,457 miles.

I will take a look at the hoses. Smoke test shouldn't be too hard also.

Thanks again,

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #4  
Old 08-23-2019, 05:02 PM
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E53 M54B30 CEL

Quote:
Originally Posted by bradb View Post
I have a SES.



Car runs very good. Some hiccups or rough running a couple times a month. Sometimes the SES even extinguishes on its own. Not for too long though.



Codes read by schwaben code reader

P0313/$12 Misfire Detected With Low Fuel

P0300/$12 Random Multiple Cylinder Misfire Detected

P0174/$12 System Too Lean Bank 2

P0171/$12 System Too Lean Bank 1

PO 301 /$12 Cylinder 1 Misfire Detected

PO 302 /$12 Cylinder 2 Misfire Detected

PO 303 /$12 Cylinder 3 Misfire Detected



Failing fuel pump or?



Thanks in advance for your thoughts.



Brad


If itís the M54, then whenever I got these codes it was always vacuum related.

On the back of the intake manifold firewall side, right side, when facing the vehicle in the upper corner there are capped vacuum ports. Sometimes the caps come off. Auto zone or any place like it sells packs of the caps. I get the multi pack that has all different sizes, and fit the one thatís most snug.

Iíve blown a few off because of the boost, and when I do these are some of the codes I get.

I forgot to mention your finger tip will get stuck to the tip of the vacuum port if itís missing the cap.

Last edited by Happy; 08-23-2019 at 07:30 PM.
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  #5  
Old 08-24-2019, 01:38 PM
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Thanks for the replies.

I am firmly pointed in the right direction, I think.

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #6  
Old 08-24-2019, 09:43 PM
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I'm having the same issues. It happens at 1/4 tank of fuel. It's the o ring in the transfer pump. See the current thread about misfiring.
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  #7  
Old 09-08-2019, 07:41 AM
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Replaced the lower intake boot.

Had an upper on hand just in case but the existing upper looked fine so I reused it.

DISA holds when covering the vacuum but is not a smooth or steady motion. Since the DISA takes a short time to replace I can do it down the road.

Running better. I am expecting the CEL to extinguish on its own after I put on a few miles.

At the manifold the hose clamps are nearly impossible to access. Picked up a flexible driver which worked nicely. I don't know what else I could have done without it.

There are some spacers on the end of both elbows that I didn't know to move them to the new pieces.

What's next?

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #8  
Old 09-08-2019, 08:22 AM
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You don't mention a smoke test...Did you do one?
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  #9  
Old 09-08-2019, 06:53 PM
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The smoke test was on my list.

See the below picture. Once I saw this I wanted to take care of it and then go from there.

The CEL extinguished after driving 30 miles.

What are the symptoms of a failing disa?

Thanks everyone for their help.

Brad
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__________________
Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
Reply With Quote
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