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Discussion Starter · #1 ·
My 2006 S60 is experiencing intermittant starting problems. About once a month, when I start it (warm engine), it sputters badly and shakes. If I turn off the ignition and re-start it, it starts OK. Occasionally the check engine light comes on with the following codes:

ECM120D - Intake air sensor/Air mass flow - low signal
121B - MAF Low Flow
212D - Fuel Trim Bank 1 - Low
21ED - Fuel Trim Bank 1 - Low
216D - Fuel Trim Bank 1 - Low

Any suggestions on fixing this?
 
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