Air pump and high flow cat...
05-31-03, 08:58 PM
#1
Air pump and high flow cat...
I think that my airpump is shot. It just started making an awful grinding/screaching sound at low RPM's (2k - 3.5k), and I'm finding metal fillings all over my engine bay. I've disconnected the electrical plug to it for now so I don't have to listen to this horrible sound. I will hopefully only have it disconnected for a few weeks... airpumps are EXPENSIVE. Basically I was wondering if this will kill my N-Tech high flow cat prematurely? Any thoughts? Thanks.
-Matt
-Matt
05-31-03, 09:35 PM
#3
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Is it normal for the air pump to make a really soft wierd noise? When I poke my head under the engine bay and put my ear near the air pump I can here it making some interesting noises.
What is needed to not have the air pump?
What is needed to not have the air pump?
05-31-03, 09:49 PM
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Well, if I end up removing my AC and PS at the same time that is a given 
Is the airpump used for anything aside from emissions? That is my main question. I just want to know if I'll screw anything up (aside from the cat) by doing the removal.
Is the airpump used for anything aside from emissions? That is my main question. I just want to know if I'll screw anything up (aside from the cat) by doing the removal.
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05-31-03, 09:54 PM
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On a lot of cars, removing the air pump messes up the idle and low speed operation. This occurs because the air pump injects air into the intake during these times. I don't understand why everyone doesn't experience these problems but a few don't.
If this does happen to your car, you will need a programmable ecu to tune the idle and low-speed areas leaner.
Moehler: It's probably not going to kill your cat if you run the car for only a couple of weeks without the pump. I believe the damage takes much longer than that to occur but I don't know for sure (and it probably varies, car to car).
If this does happen to your car, you will need a programmable ecu to tune the idle and low-speed areas leaner.
Moehler: It's probably not going to kill your cat if you run the car for only a couple of weeks without the pump. I believe the damage takes much longer than that to occur but I don't know for sure (and it probably varies, car to car).
05-31-03, 10:02 PM
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I think I'll keep it for now. I have to slow down and tackle things a whee bit slower I think, heh. FPD, FPR, AC, PS, air pump, and my swaybars all in a week 
05-31-03, 10:10 PM
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My idle is pretty fucked up as it is, but that's probably more related to my leaking FPR. 19 mpg on the interstate down from the 26 I experienced 2 weeks ago.
06-01-03, 12:08 PM
#17
Originally posted by JadedX
buy my good working air pump and you're all set
buy my good working air pump and you're all set
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