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Characteristic of the Pulsed Secondary Air Valve? 900

uid 19's pic
posted by  jbowers on  Tue Sep 6 05:09 CST 2005
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last visit: Sun Jan 22 13:49 CST 2012
[RELATED]

Over the weekend my Check Engine light came on.

The OBD-II code was P0410 for the Pulsed Secondary Air system.

All the vacuum hose fittings seem OK and the solenoid seemed OK as well. I can tell the pump will run but it can't suck much air if the air valve won't open.

When I attempted to manually actuate the air valve with my hand vacuum pump I couldn't pull a vacuum. Does anyone know if this is correct? I'm guessing this means the actuating diaphragm in the valve has developed a leak?

--
'96 965, 16' wheels, Michelin Pilot Sports, rear 18mm bar + Koni, 201 HP cams, 128K. Put 200K on '85 745 TD.






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