Quote:
Originally Posted by jsceash
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Start by looking for a vacuum leak. Any of the small tube off. The large hose from change over valve to pump cracked or off. Bad change over valve (This is under the passenger side intake).
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^ That.
Then if it is a valve, in the Air Injection, it's this:
Not a "check" valve.
Another possibility (rare?) is that the passages at the exhaust manifold are clogged. Jager did a great write-up a while back:
http://986forum.com/forums/general-discussions/49666-p0410-secondary-air-injection-system-cylinders-1-%96-3-a.html
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I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
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