Rough idle on a 1995 cougar rx7 & stalls out loads

SOURCE: car runs rough at idle

clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.

SOURCE: Stalling and black smoke

Your truck is fuel injected . Black smoke indicates a rich fuel mixture. This could be caused by numerous items. A faulty sensor, a faulty injector, a misfiring spark plug are some of them. To really zone in on the problem, a computer diagnosis is required to note sensor readings, and repair as necessary.

SOURCE: MY 96 Nissan Maxima has rough idle and is blowning

blown head gasket. black smoke means that oil is getting into the cylinder.

SOURCE: 97 Nissan Truck Stalls Black Smoke

CATALYTIC CONVERTER MAYBE! BE MY GUESS AND IT ONLY HELPS THE TRUCK TO HAVE IT CHANGED!

SOURCE: Cold start-extremely rough idle-Shakes,smell fuel

Black smoke means buring rich. Have the vehicle's ECU scanned for codes and do the repair the codes describe. I'm gonna take a stab in the dark and say Mass Air Flow Sensor.(MAF)