Well the air pump part of the smog system has nothing to do with the heads as well as the EGR. The only thing that you can't continue to use would be the crossover tube on the back of the heads. If it's a big deal, get GT40's instead...
why bother keeping the smog, if your going to be bypassing it anyways? if your worried about a visual inspection, just leave it in there until you get inspected, then pull it out. It cleans up the engine bay so much, and makes plug access so much better.
I wouldn't be bypassing it, just getting rid of the tubes that go to the head which from what i understand dont due much anyway, i still want the tube that goes on the h pipe, and it would be more hassle than its worth to take it off then put it on when needed
arent you running an offroad H-pipe? just remove the tube all together, its only to heat up the cats, which you dont have
ya im worried MI mite start testing
plus i dont like the idea of sticking screws and bolts on vacuum lines to plug them, unless theres another way?
Thats what i did, works just fine, screw in a screw, and wrap some electrical tape around it
arent you running an offroad H-pipe? just remove the tube all together, its only to heat up the cats, which you dont have
From my understanding the tube that goes to the back of the heads adds clean air to the exhaust to create a rich condition to "heat up" HO2 sensors or the pre-cats. By adding clean air to the exhaust it fools the HO2 sensors into thinking the engine is running lean and corrects that by adding fuel. It only does this on start up of the engine until the HO2 sensors come up to temp. That's why the exhaust sometimes smells rich on start up.
What I would do if I were you is remove the other AIR valve that diverts clean air to the crossover tube to the back of the heads. Leave the crossover tube and rubber hose that goes to it off and just run a single hose from the other AIR valve to the tube that goes under the car. That way if you need to put the catted H-pipe back on for emissions it will still function as a catalyst as stated above. Just be sure to get the engine up to temp before doing the smog test so that the cats are good and hot. They perform better that way.
Each one of those AIR valves has a vacuum line attached to it to activate it. Just plug the vacuum line from the AIR valve you take off.
What I would do if I were you is remove the other AIR valve that diverts clean air to the crossover tube to the back of the heads. Leave the crossover tube and rubber hose that goes to it off and just run a single hose from the other AIR valve to the tube that goes under the car. That way if you need to put the catted H-pipe back on for emissions it will still function as a catalyst as stated above. Just be sure to get the engine up to temp before doing the smog test so that the cats are good and hot. They perform better that way.
Each one of those AIR valves has a vacuum line attached to it to activate it. Just plug the vacuum line from the AIR valve you take off.
Not sure what you mean by difference. When i bought the car, the cats had been gutted already, and the tube to the H pipe was cut and pinched shut, causing the smog pump to make god awful noises. So while i was removing the smog pump, i removed all of the emissions ****, it was just wasted space.did u notice a difference in the car
Nope, it injects O2 to supply the needed component for converting the bad gasses into good gases. The two reactions that happen are:
CO + O2 --> CO2
HC + O2 --> H2O
So basically it reduces carbon monoxide and hydrocarbon emissions by converting them to carbon dioxide (what we exhale) and water.
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