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Evil Joe · 03-25-2003, 12:33 AM

I've installed an off-road H-pipe which has no port for the air tube originating from the smog/air pump. I've also removed that metal pipe that leads from the rubber "Y-split" down to the H-pipe. So, basically I'm left with is an open rubber tube which creates an annoying loud puffing sound (obviously from the air pump). (The other part of the rubber "Y-split" leads up to the heads). I've noticed that the sound from the open rubber hose happens only when the engine starts to warm up. So, there must be a switch somewhere that turns this pumping on and off. WHERE IS IT?

I don't want to fully remove the pump, nor do I want to bypass it...but I really want that sound to just go away.

Anyone have any ideas?

03-25-2003, 12:33 AM	#1
Evil Joe Registered Member Join Date: Nov 2002 Posts: 23	Tough Smog Pump Question I've installed an off-road H-pipe which has no port for the air tube originating from the smog/air pump. I've also removed that metal pipe that leads from the rubber "Y-split" down to the H-pipe. So, basically I'm left with is an open rubber tube which creates an annoying loud puffing sound (obviously from the air pump). (The other part of the rubber "Y-split" leads up to the heads). I've noticed that the sound from the open rubber hose happens only when the engine starts to warm up. So, there must be a switch somewhere that turns this pumping on and off. WHERE IS IT? I don't want to fully remove the pump, nor do I want to bypass it...but I really want that sound to just go away. Anyone have any ideas?