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Discussion Starter · #1 ·
please can anybody tell me the name of the part in my attached picture as mine snapped when I engine craned my k20a2 out, thanks
 

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It is the AAV(air assist valve) it allows extra air into the combustion chamber thru the injector ports when the coolant temps are below 149 degrees to allow for a faster warmup.

I have not had one on my engine for 4-5 years now and have not had any issue when starting the engine in temps down to -18 degrees F during the winters up here.
 
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