Quote:
Originally Posted by Batman10
Hello, my Cayman 987.1 152K miles is giving me a CEL with codes P0491 and P0492, secondary air injection system insufficient flow.
I my AOS failed and was replaced a few weeks ago, and was running great since then, with a smooth idle. The weird thing I got this after the car was already warmed up.
I searched the forums for ways to fix but seen no real clear resolution but replacing eveything in that system one at a time, Also are there two air pumps(one for each side/bank) and how can they both be bad at same time,
I live in CA and cannot just reset the CEL, block off and disregard.
any more insight or experience would be greatly appreciated thanks
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Remove the exhaust manifolds To see if the SAI passages are blocked, clean with brake cleaner spray.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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