Are these the nonused A.I.R. tubes?

[Psych0matt]

well, I see on 60degree they are called A.I.R. tubes, and in a post they were called EVAP tubes, but im assuming that means the same thing. either way, are these what I bypass/disable/get rid of?

 

[DaveFromColorado]

AIR and EVAP are two totally different things.

 

A.I.R. is an Air Injection Reaction system use to preheat the catalytic converter

 

EVAP is the evaporative vapor canister used to hold the gasoline vapors from the fuel tank.

 

someone probably posted thinking it was the EGR tube, which is part of the Exhaust Gas Recurculation system.

 

Anyhow, but those are in fact Air injection tubes - you can tell by the check valves on there.

 

--Dave.

[Psych0matt]

Thanks Dave.

[Guest TurboSedan]

i believe A.I.R is only used on 5-speed cars.

[Psych0matt]

it's a 96 engine :?

[5speedz34]

it's a 96 engine :?

 

AIR was on 96+ 3.4's. The thing is I don't think you can put different manifolds on since the 96 3.4's exhaust ports are drastically different. If you want to get rid of them I would take them out and get the hole filled. Good Luck.

[94CutlassSLCoupe]

Chances are those fittings are NPT so a plug shouldn't be that hard to find

[DaveFromColorado]

you could always re-tap them for a pair of W/B O2 sensors ...

 

--Dave.

[Psych0matt]

I would take them out and get the hole filled.

That's the plan, the writeup on 60degree says to plug them off

you could always re-tap them for a pair of W/B O2 sensors ...

w/b?

[digitaloutsider]

Wideband.

[JakeMetz63]

I just welded mine shut when I did my swap (97 into 94)