Throttle Off Idle
Throttle Off Idle
This thread is basically to get a second opinion on a problem...
So up until this morning my car ran perfectly fine w/ an open K&N cone filter (rest of the intake is stock). Last night I drilled holes in the top of the filter (the metal cap) to put the IAT sensor in so that I could finally give it true purpose and not just have it dangling in the engine bay. I'm beginning to think it was better off there.
The problem is that if I'm sitting at a dead stop and give it anything more than about 1/8 throttle, it will sort of limp to 1000 RPM (1/4 throttle) or fall flat on it's face and dip to as low as 400 RPM (1/2 throttle or more). Keep in mind all I have changed is that the IAT sensor is now attached to the filter. I even used the gasket that it uses from the factory to attach to the air box, so I thought I had a pretty tight seal. I did not use the factory screws, though.
The problem was really bad but sort of calmed itself down by the time I got home from running errands. What could the issue be? I didn't think such a tiny, insignificant amount of unfiltered air could possibly cause a problem this big. Is that what the problem is, do you think? If I were to seal up the sensor to be 100% air tight (it's like 95% air tight now), would that solve it?
What baffles me is that it's just right off idle that it has this problem. Anything beyond 1000 RPM and the car pulls just like it should, no problem.
So up until this morning my car ran perfectly fine w/ an open K&N cone filter (rest of the intake is stock). Last night I drilled holes in the top of the filter (the metal cap) to put the IAT sensor in so that I could finally give it true purpose and not just have it dangling in the engine bay. I'm beginning to think it was better off there.
The problem is that if I'm sitting at a dead stop and give it anything more than about 1/8 throttle, it will sort of limp to 1000 RPM (1/4 throttle) or fall flat on it's face and dip to as low as 400 RPM (1/2 throttle or more). Keep in mind all I have changed is that the IAT sensor is now attached to the filter. I even used the gasket that it uses from the factory to attach to the air box, so I thought I had a pretty tight seal. I did not use the factory screws, though.
The problem was really bad but sort of calmed itself down by the time I got home from running errands. What could the issue be? I didn't think such a tiny, insignificant amount of unfiltered air could possibly cause a problem this big. Is that what the problem is, do you think? If I were to seal up the sensor to be 100% air tight (it's like 95% air tight now), would that solve it?
What baffles me is that it's just right off idle that it has this problem. Anything beyond 1000 RPM and the car pulls just like it should, no problem.
Ok, this may be a bigger problem than I originally took notice to. First of all, the filter keeps popping off a little, so that may be part of that problem.
More importantly, my exhaust is black. Not like "Holy crap that's black!" black, but faintly black. It's more noticeable because my exhaust tip is now covered in black dust. My exhaust has also begun to shake badly, and it never used to do that. Come to think of it, everything on the engine that isn't firmly attached to something sort of shakes a little.
Makes me wonder what all this could be, given all the weird different things I've noticed. Any thoughts?
More importantly, my exhaust is black. Not like "Holy crap that's black!" black, but faintly black. It's more noticeable because my exhaust tip is now covered in black dust. My exhaust has also begun to shake badly, and it never used to do that. Come to think of it, everything on the engine that isn't firmly attached to something sort of shakes a little.
Makes me wonder what all this could be, given all the weird different things I've noticed. Any thoughts?
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