Originally Posted by
Andrewsafb71
What do you mean exactly by "kick in?" Did the check engine light come on? If it's a misfire that makes the light stay on for a duration and then off sometimes it's a type 2 misfire which if I remember correctly does not involve the catalytic convertor. If it did it would be constantly flashing and that's a problem.
Did the engine light turn on and remain on when you say kick in?
How much smoke? What color smoke? Did you drive to the point where everything under the hood got hot? Details! Don't rely on that duct tape for the moment, replace that air duct if you have any doubt it's not as it should be. Even if it doesn't solve your misfire problem. You can get an OEM part off the internet for about $9. Garbage getting sucked in the engine bypassing the air filter is bad bad news.
Replace the hose and try cleaning the throttle body. It may not fix the misfire problem but it will be an improvement with how it's driving The throttle body does not need to be removed to clean it, just look up a tutorial video. If you have a friend handy or something you can put on the accelerator while you clean it to open the throttle it will make it easier then pulling on the end that opens it.
Without resetting the computer the car has to be driven a certain amount of miles for the computer to report that the misfire is gone. The computer can be reset by unhooking the battery terminals for about 10 minutes. The computer will reset to the default factory settings and will take time to calibrate to how your engine is performing, your car will most likely ride differently until it has adjusted from what it's supposed to be performing at versus how it's actually running.
Use caution resetting the computer, everything will be back to normal after driving for a while but you'll know for certain if the check engine light, again after driving it for a bit, comes back on because of a misfire.