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[car5car]

I don't think my car needs it.

[tunnie]

Secondary air injection? Not needed, there for cold start emissions only makes no impact to car running or fuel use.

[car5car]

I checked diagram and didn't find connection between ECM and secondary air injection pump, only solenoid is run by ECM.
That means, you can throw away everything, except solenoid and ECM will not notice it.

[Andy B]

I checked diagram and didn't find connection between ECM and secondary air injection pump, only solenoid is run by ECM.
That means, you can throw away everything, except solenoid and ECM will not notice it.

Correct  ....... but easier to just pull its fuse. 

[sjc]

I checked diagram and didn't find connection between ECM and secondary air injection pump, only solenoid is run by ECM.
That means, you can throw away everything, except solenoid and ECM will not notice it.

Correct  ....... but easier to just pull its fuse. 

Which fuse is that do you know?

[Elite Pete]

Aren't the immission laws tighter in the US of A I would check before removing it

[car5car]

There is no emission control in Florida. I think, air injection system is just a way to cheat emission control by manufacturers. Exhaust gas is just dissolved by clean air, of course pollution percentage goes down.

[Abiton]

There is no emission control in Florida. I think, air injection system is just a way to cheat emission control by manufacturers. Exhaust gas is just dissolved by clean air, of course pollution percentage goes down.

If it was that simple a cheat, why bother to go to the trouble/expense/complexity of pumping the air in so far upstream, right at the exhaust ports? It would be much easier to arrange for the cheat air to enter further downstream towards the tailpipe, no?

It's about warming the cat(s) up quicker by a secondary combustion, so that they can burn off the hydrocarbon pollutants that are unavoidably associated with cold start.  HCs make smog, which no-one wants, unless they are idiots.  Newer solutions are better, simply by putting a cat nearer the engine, so it naturally heats faster.

[CaptainZok]

There is no emission control in Florida. I think, air injection system is just a way to cheat emission control by manufacturers. Exhaust gas is just dissolved by clean air, of course pollution percentage goes down.

If it was that simple a cheat, why bother to go to the trouble/expense/complexity of pumping the air in so far upstream, right at the exhaust ports? It would be much easier to arrange for the cheat air to enter further downstream towards the tailpipe, no?

It's about warming the cat(s) up quicker by a secondary combustion, so that they can burn off the hydrocarbon pollutants that are unavoidably associated with cold start.  HCs make smog, which no-one wants, unless they are idiots.  Newer solutions are better, simply by putting a cat nearer the engine, so it naturally heats faster.

Hence the pre cats on the later engines I assume and we all know how well that one worked.