throttlejunkie1

iTrader: (10)

Hey fellas, I just installed a set of MAC mid lenth headers on the LT1 this weekend (PITA)... I got to looking at the overall appearance under the hood. I see that I have a lot of potential cleaning up what I already have and making it look really nice. One thing that I'm wondering is, can I remove the A.I.R. check valves and tubing and weld up/cap off the header inserts? This would make a better appearance especially on the passenger side. I had a custom 2 1/2 in y-pipe made and threw the cat in the dumpster! I'm under the impression that there is really no need for that a i r system now.?.?. Any ideas? Thanks

late 95 Trans am LT1...

infinitebird

iTrader: (11)

You are correct, the only function of the air system is to heat up the exhaust for the cat.

Formula350

iTrader: (3)

Isn't the AIR pump for the EGR and nothing to do with the cat except indirectly?

infinitebird

iTrader: (11)

no. AIR has nothing to do with EGR. Its only purpose is to heat up the exhaust like I said.

t-rocks firehawk

will it set off an ses like it does the newer ones?

myk

iTrader: (4)

Yup. Good thing that it's a relatively easy system to diagnose and fix...

chavez885

iTrader: (12)

Yes, removing the AIR or EGR usually sets a code off. It can be removed with a tune.

throttlejunkie1

iTrader: (10)

Thanks for the advice. I could easily cap off the insert on the headers, leave the a i r tubing open (because it just blows air) and leave the pump installed for now. To me, that shouldn't set a code due to the fact that the system is still functioning but just not the way it was ment to... right???

sweet-94z28

iTrader: (30)

I know on the OBD 1 cars, you just make sure the fuse is good and you pull the pigtail out of the air pump. Then there is no SES light. I didn't have an AIR pump for a while so this is what I did.

blk97z28

iTrader: (3)

ya cap the headers and remove the A.I.R. system.

chavez885

iTrader: (12)

right

Formula350

iTrader: (3)

Well my AIR plumbed into the back of the intake next to the EGR *shrug*

Rocky70304

iTrader: (4)

You can get block off plates for the back of the intake for the egr and air system.

StolenRedCamaro

iTrader: (2)

unhook the air tubing from the headers, and connect it to your intake - free supercharger

throttlejunkie1

iTrader: (10)

I don't know about all that... I'm kinda gulable but if it were plausable, I think everybody would be doing it. Besides, the a i r pump only operates at idle/low idle I think.

sweet-94z28

iTrader: (30)

yup, it's only on at idle

Beaflag VonRathburg

iTrader: (176)

I just pulled that bitch off of mine. That thing was amazingly difficult to get to.

Will that work with the 93 ECM?

throttlejunkie1

iTrader: (10)

Well, heres what I ended up with. I welded a two way bolt. Then I self screwed the a i r check valve into one of the ends and welded it too (after I removed it from that long *** piping). Screwed it into the header, cut the hose to length, and plugged it back in. I probly need to post a picture for a better visual.

Over all outcome, the a i r system (technically not used) but still in tact and appears much neater within the engine bay, instead of wrapping all the way down the valve cover and back. Plus, I have so much more access to get in there and torque check my header bolts on occasion.

Let me know if you guys would like a picture of how it ended up.

sweet-94z28

iTrader: (30)

Sounds like it worked. That should work on the 93 ECM. All it does is check the circuit.

Beaflag VonRathburg

iTrader: (176)

I'm guessing by the way it works I can't cut those wires without throwing the code then?