Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

installed stock BOV on, but plugged recirc hose...

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Old Aug 7, 2003 | 07:05 AM
  #2  
ride5000's Avatar
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From: 12.9 / 105+
Car Info: black my03 5mt wrx s/w
bad idle is usually caused by an intake leak.

double check all your hoses and plugs.

make sure that the bov itself isn't leaking air INTO the IC.

ken
Old Aug 7, 2003 | 08:21 AM
  #4  
ride5000's Avatar
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From: 12.9 / 105+
Car Info: black my03 5mt wrx s/w
no it's not the recirc hose being plugged. that won't pass any air under normal conditions of idle.

you don't want to kill the bolts holding the bov on... they thread into an aluminum IC. how chewed up was the gasket?

to test the bov itself, put a plug in the outlet of the bov and see if the idle improves.

are you sure all your IC hoses are well-clamped?

hth
ken
Old Aug 11, 2003 | 09:58 PM
  #7  
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Car Info: 1991 Toyota MR-2 Turbo
While the car is idling try removing the vacum line to the stock BOV and see if it gets better (do not drive it like this!).

Some stock setups actually are designed to allow some air into the system at idle.
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