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On cold days, it can be a problem, but not minor or major. To fix this problem, read the following;
To fix the secondary air injection system, you'll probably need to replace the pump, which is called an "air pollution pump". It is part of the emissions. Prices range for around $150-$250. Also, you can tell if your pump is working by listening to the car on a cold day when the vehicle starts up. If you hear a wining noise, that's good! This whining noise is the pump working. The pump comes on to help limit bad vapor such as co2 from escaping into the atmosphere, however Its main function is to help warm up the car until the
oxygen sensors kick in, which can be anywhere from 60-120 seconds. If you don't hear a wining noise, and your check engine light is on, then you will probaly need to get you air pollution pump replaced.
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