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X5 E53 (1999 - 2006)
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Old 11-05-2013, 10:23 PM
JJ1021ABQ JJ1021ABQ is offline
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Location: Albuquerque
 
Join Date: Nov 2013
Posts: 1
Mein Auto: 2002 X5
Question I could really use some help please :/

So I have a 2002 X5, it's a 3.0 litre (M54) I bought it for my wife a while ago. To make a long story short the MIL light (malfunction indicator light, service engine soon) was on when I bought it. I have worked on cars before, quite a bit, but never a Beemer, so I bought service manual published by Bentley Publishers to help me figure out exactly what's going on. I've gone through the book quite a bit and along with my OBD II scanner I have a few ideas about what could be the culprit(s). The DTC codes that are showing are as follows in order:

-P1083
-P0300
-P1346
-P1344
-P1349
-P1351
-P1343
-P1353
-P0313
-P1085
-P0171
-P0174
-P0313
-P0300

After going through the book I'm thinking it could be the oxygen sensors pre-catalyst and or something in the secondary air injection system? however I am not 100% certain :/ if anyone has some input or ideas I would surely appreciate any help I can get! thanks for taking the time to read this and again I would greatly appreciate any help!
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  #2  
Old 11-06-2013, 07:43 AM
tmvE39/E53/Z32's Avatar
tmvE39/E53/Z32 tmvE39/E53/Z32 is offline
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Location: Seattle --> Atlanta
 
Join Date: Dec 2010
Posts: 1,883
Mein Auto: 03 540, 06 E53 4.8, Z32TT
Quote:
Originally Posted by JJ1021ABQ View Post
-P1083 Fuel control limit too lean Bank 1 sensor1
-P0300 Random Misfire Detected
-P1346 Misfire During start Cylinder 3
-P1344 Misfire During start Cylinder 2
-P1349 Misfire Cylinder 4 with Fuel Cut-off
-P1351 Misfire Cylinder 5 With Fuel Cut-off
-P1343 Misfire Cylinder 1 With Fuel Cut-off
-P1353 Misfire Cylinder 6 With Fuel Cut-off
-P0313 Misfire Detected with Low Fuel
-P1085 Fuel control limit too lean Bank 2 Sensor 1
-P0171 Bank 1 too lean
-P0174 Bank 2 too lean
-P0313 see above
-P0300 see above
The code are misfire and lean code. They are related. There's a vacuum leak and the ECU cut off the fuel to any misfired cylinder to prevent damage.
I would check for vacuum leak starting at the intake tube, check and clean the MAF, DISA valve, Oil separator valve and tubes, VCG....I would also replace the spark plugs (NGK BKR6EQUP) After that, clear all the code and see which ones would come back if any.
I see no code for O2 sensor or Secondary Air system
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2000 Dinan S1 //M5 (my DD) 06 DINAN E53 4.8iS (wife's DD), 90 Straman Z32TT (my pride & joy ride)

Gone, but not forgotten: 01 E53 3.0i, 01 525i Sport, 03 DINAN 540i MSport and 91 Z32TwinTurbo

Last edited by tmvE39/E53/Z32; 11-06-2013 at 07:46 AM.
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2002 bmw x5, dtc code help, p0171, p0174, p0300, p0313, p1083, p1085, p1343, p1344, p1346, p1349, p1351, p1353


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