New How to for iron head guys

[geoffinbc]

http://members.shaw.ca/betterthanyoutoo/how-to/airremoval/airremoval.htm

I have written a how to for removing the A.I.R. Pump on 2.8L engines. I have done it to both my Trooper and S-10. On my Trooper it was simple to do because the donor engine is actually a Rodeo 3.1L and as rodeo owners know they don't have A.I.R. and the passenger side manifold does not have a big hole to plug. On my S-10 I ran the A.I.R. system on my 3.4L for years and it worked fine but I am getting in gear to do some engine work and the A.I.R. system is not in the plans. So in order to remove it I utilized the Rodeos 3.1L tensioner and plugged the hole in the manifold.

So anyway for you 2.8L Trooper or S-10 owners take a look its pretty easy and might be a good way to go if your A.I.R pump is making horrible noises or completely seized. This might apply to early Camaro's but I have never seen if they have a belt driven pump or not. I know the late model ones used electric pumps.

[ForcedFirebird]

2.8/3.1 fbodies had the pump. I bypassed mine (1990 model) by re-routing the belt, so yes, this applies at least through 1990 (not sure if the 91-92 models have the electric pump).

[robertisaar]

my diagrams are showing a belt driven pump for 92 F-body 3.1...

[bob442]

Canadian cars dont have air pumps

[geoffinbc]

Then 93 to 95 Camaro's with the 3.4L got the electric pump.

[neo71665]

You just taped off the electrical plug and it doesn't throw a code? Hows the popping through the exhaust when you let off the gas now?

I been looking at mine thinking I was gonna ditch it when the 3.4 goes back in the blazer for awhile.

[neo71665]

Just pulled the ribbed pulley info up and on rock auto its

ACDELO 38009 and $14.03

[geoffinbc]

No it won't throw a code. And there is no difference in the exhaust

[ForcedFirebird]

Digital EGR will throw a code, my Bird's light would come on for a minute after a highway drive then going back to cruising.

[geoffinbc]

The AIR system should not throw a code since the ECM has no way of detecting it is active since it goes into bypass mode and just circulated air back to the atmosphere when in closed loop. But maybe the later model more sophisticated ECM's run a test to see if its doing anything. But you can easily check before you do the removal by unplugging it for a few days.

[2.8-350TBI]

SWEEET
I know ill be doing this soon.

[neo71665]

I got the new ribbed pulley in the mail today and modded my tension pulley tonight.

Still cleaning and painting parts for the engine but its ready to go back together without the A.I.R. This weekend I have to pressure wash and paint the engine bay then the engine is going in.

[ForcedFirebird]

The AIR system should not throw a code since the ECM has no way of detecting it is active since it goes into bypass mode and just circulated air back to the atmosphere when in closed loop. But maybe the later model more sophisticated ECM's run a test to see if its doing anything. But you can easily check before you do the removal by unplugging it for a few days.

I'm sorry, I said digital EGR, but the AIR was also integrated into the ECM and connected to the harness. There is a way to jump the wires so the ECM thinks the pump is there, but I never removed the pump itself and just left it plugged in and used a shorter belt.

[robertisaar]

I'm sorry, I said digital EGR, but the AIR was also integrated into the ECM and connected to the harness. There is a way to jump the wires so the ECM thinks the pump is there, but I never removed the pump itself and just left it plugged in and used a shorter belt.

something like a 6 ohm resistor may work perfectly into fooling the ECM...

[pocket-rocket]

I removed the AIR in the 92 and I don't believe I ever did anything with it in the ECM and mine never set a code for it.

Look ma! No AIR injection tubes!