Codes on my 2005 XC 70

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Old 09-21-2018, 09:33 AM
pgeraghty's Avatar
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Default Codes on my 2005 XC 70

My 2005 XC 70 started running poorly - intermittent rough idle, lack of power. It starts ok, runs, but not good. Ran the codes at the auto parts store, they are:
- Engine Control Module (929D)
- Ignition Coil Cylinder 5 Signal (354B)
- Throttle Valve (9270)
- Mass or Volume Air Flow A circuit range/performance (P0101)
- System too rich off idle bank (P2178)

With so many messages, anyone have any thoughts on the most likely culprit/where to start. So far, have cleaned the MAF, seemed to make some improvement.
Pat Geraghty
 

Last edited by pgeraghty; 09-21-2018 at 09:43 AM.
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Old 09-21-2018, 09:52 AM
mt6127's Avatar
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you may also want to clean the throttle body and read up on ETM issues and symptoms.
 
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