recirculation pipe for BOV
recirculation pipe for BOV
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Joined: Nov 2001
Posts: 14,221
From: Peoples Republik of Kalifornia
Car Info: 05 H2 SUT, 45 GPW, 10 Murano, 13 Boss 302
If you are running a recirculating aftermarket BOV, then yes. Even one that is 50/50 will need it.
If you are running a 100% atmospheric BOV, then no. You can plug off the intake or hose. The CEL won't come on, but your car may run like poo. Many folks have problems with 100% dump BOV's, still others don't. I, for one, have kept the stock bypass valve on my STi since it does what it is designed to do, and does it without upsetting my car. YMMV
If you are running a 100% atmospheric BOV, then no. You can plug off the intake or hose. The CEL won't come on, but your car may run like poo. Many folks have problems with 100% dump BOV's, still others don't. I, for one, have kept the stock bypass valve on my STi since it does what it is designed to do, and does it without upsetting my car. YMMV
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