AIR delete... Who's pulled it? Effect?
 

What do you know about AIR system deletion?

Is it only for emissions? Or for tune? Is it in Calibration at all?

What effect has removal from tune? The OBX hardware I got has only a P side port for AIR plumbing, and I'm considering system delete here...

Re: AIR delete... Who's pulled it? Effect?
 

That port on the pass. side is the EGR tube and the early 375 hp engines don't use that. just thread in a bolt and tack weld it closed.

You can unplug or remove the air injection pump and the car will never know- it does not monitor that and there is no fault code to set the check engine light. OBD1 for-the-win.

Re: AIR delete... Who's pulled it? Effect?
 

Removed all air systems no issues with passing here, or maybe they don't know what to look for. I believe the AIR only runs at start up. In Ga. all they care about is if the OBD1 cars pass the sniffer on the rollers and still have visible cats.

Re: AIR delete... Who's pulled it? Effect?
 

We have to pass a visual check in colorado. Thats why I added them to my headers. They dont have to work, they just have to be there. Another stupid emmisions rule that does not make any sense. If it wasn't required , I sure wouldn't have gone thru the trouble installing them. Each state emmsion s laws vary .

Re: AIR delete... Who's pulled it? Effect?
 

Mine is not functional and didn't get caught in inspection. I think they just did a sniff test here in Texas.

Re: AIR delete... Who's pulled it? Effect?
 

What exactly is the 'Air injection' function? FSM is still snow [dust] bound...

And there's no feedback for the cal / tune?

Looks like header completion just bumped up a day???

Re: AIR delete... Who's pulled it? Effect?
 

The pump adds air to the exhaust on a cold start. Cleaner burn and lights off the cats faster is what im told. Only operates for a few minutes at startup. No feedback so no code when you remove it

Re: AIR delete... Who's pulled it? Effect?
 

4-Cam is right. It only operates on a cold start (according to Marc H about 90 seconds). We don't need emissions testing in Illinois so I pulled mine and there is no adverse effect on performance. I also don't have cats or secondaries. --Bob

Re: AIR delete... Who's pulled it? Effect?
 

See Item #5 LT5 Eliminated Systems

5. Eliminating Air Injection system.

The Air Injection System including the Air Pump has been eliminated (especially for those who are installing Headers). Associated with the Air Injection system is one vacuum line on the drivers side fender skirt above the shock tower. I eliminated the "T" and just moved the "Y" in front of "T" about 3 inches and plugged the "Y" back in where the "T" was. This modification maintains the Cruise Control Vacuum and the associated Vacuum to the Cruise Control Vacuum Reservoir under the Drivers Side Headlight.

http://i287.photobucket.com/albums/l...rInduction.png

Re: AIR delete... Who's pulled it? Effect?
 

Mine is functional and intact. One of the more easily fixed systems on the car. I have not pulled it.

Re: AIR delete... Who's pulled it? Effect?
 

Could the AIR pump be ducted to vent underneath the plenum? Additional cooling?

I wondered about a PC tower fan rigged to pull air through the space...

This is getting toooooo complicated
 

Lets NOT get complicated now.....:D
That is the reason to delete the Air Induction with Headers....it is just a jumbled up plumbing Air Induction Mess and you can get SW Headers without Air Induction ports and without EGR ports for example.

Will an LT5 run if it is NOT Intact :sign10:

I know an LT5 will run if it has parts that are Jumbled/Kludged/Ripped :D
And......purty FAST too :sign10:

Just having some harmless fun with the boys :handshak:

Re: AIR delete... Who's pulled it? Effect?
 

I was running rich on all 4 passenger side cylinders, I assumed because headers were leaking allowing outside air in. It ended up being the air injection tubing, as there are a lot of joints with plastic hose clamps. Removed everything and installed brass plugs on the injector ports on the headers, problem solved.

Re: AIR delete... Who's pulled it? Effect?
 

I bought Stainless Works long tube headers and had them install the AIR and EGR tubes on them. Bolted right up to the factory AIR system and works as advertised. I chose to do that because the emissions equipment is supposed to be there to pass in TX, at least in Houston, TX. However, I am positive I could have deleted it and no technician that has ever tested my car would have known.

Re: AIR delete... Who's pulled it? Effect?
 

florida does not test emissions. no cats, no resonators, tiny mufflers and long tube headers. previous owner disconnected air system. car runs great.

ed ramos #3028

Re: AIR delete... Who's pulled it? Effect?
 

Hi gentlemen, I included a picture of my
Lingenfelter headers I plan on installing. My question is should I cut these air tubes off and weld the holes or is it easier to just hook up? What is currently there on my 1991 oem zr-1 headers? I do not have a lift and I?ve never done the job. All I wanna do is maintain the factory cruise control and get the performance gains from the aftermarket headers . can someone please post pictures of what they did something about a T and a Y fitting to maintain the Factory cruise control I saw he deleted these tubes and did something with the Y & T fitting, I believe plugged it.
Whatever is easier and cheaper I will do as I just want the performance gains and maintain cruise control. Can someone please show a picture if they have it it & elaborate is it easier to keep these tubes or is it easier to cut them off , weld holes and just plug the Y & or T fitting?

Re: AIR delete... Who's pulled it? Effect?
 

See post #9 in this thread above....

LT5 Eliminated Systems
Post 146 - LT5 Eliminated Systems

See item #5 in LT5 Eliminated Systems Thread for picture....👍