besides putting the CO detector inside the car, should i put it against the engine while running ? will the CO detect leaks like that ? I'm trying to figure out where the fresh air in the vents is sucked in from, because that's where the CO would be coming in from to begin with.
is the exhaust pipe from the engine to the back the only place where CO is present ? any other areas that I should check with the detector ?
thanks.

__________________
Whether you think you can or cannot, Either way you're right!. by Henry Ford.