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Mechanical and Technical Mechanical and technical topics, help, and discussions |
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#1 |
Junior Member
Join Date: Mar 2014
Location: Fort Worth, Texas
Posts: 2
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Porsche 911 codes
Can anyone help me with the following codes?
DIAGNOSTIC CODE. P0491 SECONDARY AIR INJECTION SYSTEM BANK 1 AND P0492 SECONDARY AIR INJECTION SYSTEM BANK 2 CONFIRMED. |
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#2 | |
Member
Join Date: Dec 2003
Location: It's a kind of magic.....
Posts: 93
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Quote:
P0491 Secondary Air Injection System, Bank 1 - Insufficient Flow P0492 Secondary Air Injection System, Bank 2 - Insufficient Flow Possible cause of fault - Electrical fault in power supply or line between relay and secondary air injection pump - Secondary air injection pump relay mechanically faulty - Mechanical fault in electrical secondary air valve - Pneumatic secondary air valve faulty/sluggish - Electrical fault in secondary air injection pump - Mechanical fault in secondary air injection pump or secondary air injection pump blocked - Vacuum system leaking - Air hose to secondary air injection pump slipped off or constricted |
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#3 |
Junior Member
Join Date: Mar 2014
Location: Fort Worth, Texas
Posts: 2
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Thank you for the information!
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#4 |
Junior Member
Join Date: Apr 2015
Location: Pakistan
Posts: 1
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Thanks for sharing information
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