The MAP sensor is bolted to the side of the throttle body.
Black soot from the tail pipe is not uncommon, and clear water is a byproduct of the catalytic converter doing its job, so those are probably not the best symptoms to look at. I'd be more concerned with feeling a misfire. The next step would be to connect a scanner that can read live sensor data during a test drive. If the oxygen sensors are switching rapidly between rich and lean a couple of times per second, the engine is most likely running properly. If one of the readings stays lean longer than normal, that O2 sensor is detecting the unburned oxygen from the misfire. You will smell the unburned fuel at the tail pipe.
Thursday, June 30th, 2011 AT 6:32 PM