![]() ![]() This kit is ideal for Mustangs not running catalytic converters and it's aluminum construction saves weight. Perform operation check for the secondary air combination valve RH using a Select Monitor. Do some research on whether this is the case, and where the atmospheric pressure sensor lies. ![]() Water may be drawn into the secondary air injection (AIR) pump causing the pump to fail and the Check Engine Light to illuminate. here are a few pic of the stock sensor how i cut it and what it should look like after. Since it's function is merely to get the cats up to temp faster at start-up (open loop) as an emmisions function, lots of people are disabling the system and using a block off plate to eliminate the air pump (and secondary air valve, which also fails) I have a 2011 STI (Canadian Edition). It throws a check engine light and you either have Fits Forester, Impreza, Legacy, Outback, STI, WRX Air Injection System Air Pump A failed air injection pump or secondary air pump will often have no noticeable symptoms beyond a check engine light, but it does cause your 2011 Subaru Forester to operate inefficiently and produce higher emissions. The secondary air injection (AIR) system aids in the reduction of hydrocarbon emissions during a cold start. Subaru Air Pump Delete Block Off Plate Ej20ej25 Impreza Wrx Sti Legacy Forester. ![]()
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