no1kicker Posted June 15, 2005 Report Share Posted June 15, 2005 Is this ok to use with the tube plugged? (for emissions only ) Quote Link to comment Share on other sites More sharing options...
Canada Posted June 15, 2005 Report Share Posted June 15, 2005 All the tube does is allow some extra air to enter the cat to help it work better. Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted June 15, 2005 Report Share Posted June 15, 2005 yeah, the air tube is a "preheater" and on the air pump cars, it stops pumping the air into it once the engine comes up to normal operating tempature - there's a lot of cars out there running with that tube plugged with no adverse effects. --Dave. Quote Link to comment Share on other sites More sharing options...
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