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sprinkles08
sprinkles08, ASE Certified Technician
Category: BMW
Satisfied Customers: 21604
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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2005 545I 29f0 Code
, poor idle, showing multiple

Customer Question

Customer: 2005 545I 29f0 Code
JA: Thanks. Can you give me any more details about your issue?
Customer: poor idle, showing multiple misfires. Using Snap on Verus D10 scanner
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Customer: Getting ready to replace spark plugs
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Submitted: 1 year ago.
Category: BMW
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

There are many thing that will cause misfiring. Spark plugs are the most common cause but it may also be a coil issue, injectors, localized vacuum leaks causing cylinders to run lean, fuel quality, possibly a cam timing or cylinder sealing issue.

Have the spark plugs now been replaced?

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