exhaust to intake

[spydrr21]

so i know in most cars you want cold are intakes but in my 82 sentra i have 2 hoses going from my exhaust back to my intake. im not sure what they really do. and i kinda want to get rid of them but i dont want to hurt the car or lose any gas millage or power (the little it has). so i was just wondering if any one knew what the point of the hoses is and the ups and downs to taking them off or keeping them.

 

if any one want to trade a 510 for a 82 sentra let me know. lol

[datzenmike]

Probably exhaust gas recirculation EGR if they are metal.

 

If it runs leave alone, not worth anything to remove them even if done properly. Could cause an intake leak.

[spydrr21]

they just run to the air box. so the only leak would be an exhaust leak. but i think your right. its running. not very well but running. so better to leave it

[Kisor]

That's probably the A.I.R. injection and it's going the other way. It picks up filtered air and uses the air pimp to inject it into the exh helping the catalysts burn off emissions.

 

Nor hurting anything, leave them be.

[datzenmike]

i have 2 hoses going from my exhaust back to my intake.

 

Yeah once he changed it to the air box I knew it was the air injection. It uses one way reed valves at the air filter and relies on negative exhaust pulses to draw in little puffs of air to mix with the exhaust to help it burn in the catalytic converter.

 

Totally passive system, uses no power to run, has no effect on performance whatever.

[spydrr21]

thanks for the help guys. planning on getting rid of it asap!!!!