986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Need Professional Help Diagnosing with Durametric Data

JFP in PA · 04-02-2017, 08:08 AM

OK, let's start with the basics, as in what the codes mean, so from the OBD II manual for your car:

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

P0348 Camshaft Position Sensor 2 – Above Limit

Possible fault cause
- Short circuit to B+

It is likely that the codes are related, especially as the P0348 indicates a possible electrical short, as does the P0492.

04-02-2017, 08:08 AM	#6
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,283	OK, let's start with the basics, as in what the codes mean, so from the OBD II manual for your car: 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 P0348 Camshaft Position Sensor 2 – Above Limit Possible fault cause - Short circuit to B+ It is likely that the codes are related, especially as the P0348 indicates a possible electrical short, as does the P0492. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 04-02-2017 at 09:17 AM.