Use your car as a flowbench - measure exhaust backpressure to see ... This time, rather than removing the oxygen sensor to get access to the pressure, you can drill some small holes in the exhaust ...

The manifold absolute pressure ... signs of a bad MAP sensor include rough idling, sluggish acceleration or hesitation, poor fuel economy or black smoke coming out the exhaust.

A car can backfire when fuel vapors ... A bad oxygen sensor, mass air flow sensor, manifold pressure sensor, throttle position sensor, a stuck-open exhaust gas recirculation (EGR) valve or an ...