i learn something new everyday :P

 

Well, ya know, we needs da proof
and da proof is da proof and
when you have da good proof, it’s proven.

 

So Mir...whatcha saying is....even though my motor is in pieces, when I put it back together I should put that farker back in?

 

Simple answer
You will get no benfit by not putting in.
You may have to reprogram your PCM so it wont through SES light
and hopefully Emission inspector wont check it.
If you put it, its little extra work and you will have extra 5 lbs and your Engine bay may look cruddle (sp).
I have mine in, cause in TX we have Clean AIR ACT. Your PCM must pass all the the its own OBDII test. I may have two device not ready mode.
I will say put it...... no biggie.....

 

If you think that explanation in any way explains why the AIR pump does or doesn't need to be connected to extend the life of the cats.... I have some really nice land in Florida I would like to sell you.

The air injected by the AIR pump starts to combust with the unburned hydrocarbons in the exhaust pipe, BEFORE it even gets to the cats. This exothermic reaction generates heat, and causes the cats to reach the minimum required operating temperature faster.

Is there a residue of unburned HC's that builds up on the converter, and causes localized overheating of the ceramic substrate? Will there be more of this with or without the AIR pump being used? Do you know?

Stick to your day job.... .

 

I don,t have to pass emissions here.
I installed Long tube headers and yanked the EGR and the AIR pump and threw them as far away from my car as possible.
I removed the cat as well and gave it to some poor slob who believes the hype.

 

false, the car only runs in SD when the MAF sensor is unplugged.. not when the car is cold.

 

Of course the MAF is still used on cold start. It's amazing how much bad info gets posted on some of these threads. The only difference between a "cold start" and "normal" driving is the fact that the PCM stays in open loop, ignoring the feedback from the O2 sensors - since they don't work until they heat up also. MAF is always used on an MAF car, as long as it isn't broken. Yes, idle speeds are higher based on coolant temp, target A/F ratio is definitely richer on cold starts, but the overall control mechanism is still the same.

 

OK OK OK OK.......3rd try. Being that my motor is in pieces. Would you put it back in?

 

You've got to decide for yourself. I can't see any evidence that it will shorten the life of the cat(s).

Whether you want it for emissions is a personal choice.... I personally like breathing clean air, and I could probably lose my state issued professional engineering license for willfully violating emissions laws, so I have a different set of values and a different prospective than others might have.

 

i took mine out b/c it was an unsightly mess of hoses and i dont have emissions testing. if i had testing however i would have left it as is.

 

But Injuneer you don,t have cats on your race car.
I know it does not run on the street but you still pollute when racing.
When the gross polluters are forced to clean up thier acts and not get exemptions for crushing cars then I might start caring more.
I like clean air and I like the smell of exhaust with no cats at WOT.

 

S.J.S, here is the answer you have been waiting for for.

REMOVE IT. If your engine is out, or even it it's in, toss the POS. You won't gain anything, but you will lose some of the mess under the hood.

I repeat, REMOVE IT.

This message has been brought to you by Razeak. Good luck!

 

its stay pluged in. I am talking how PCM Interpreted and take in the equation

 

Okay
okay
I am not with ****ogies