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#1
06-11-2013, 08:52 PM
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Calling all code readers
01 X5 keeps showing PO491 and PO492. Secondary air injection system bank 1 and 2. I cleaned the Maf and Mas. What does this mean? I searched and found no cure. anyone decipher? Major or minor problems?
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#2
06-11-2013, 09:16 PM
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I suggest reading the codes with BMW software and telling us what it says, generic OBD codes are going to solve your problems about as well as the guy behind the counter at Autozone would.
__________________
2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards
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#3
06-11-2013, 09:44 PM
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Is your air pump working in the morning?? Check fuses if not.
1 Check the vacuum hose on the air pump valve. Its common for this hose to crack on the bottom right at the valve inlet. 2 If its not cracked, when your vehicle is cold check to see if the hose has vacuum. When the vehicle is hot, there will be no vacuum. 3 If all is good so far, check to see if the valve is opening with vacuum. 4 Is your air pump producing air at the outlet? Good luck.
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