On the backside of the engine close to the top there is a bleeder valve in the fuel line.check your fuel pressure there.if gas comes out and sprays basically to the top of an open hood,your pressure is fine.check the spark on your number one plug.it has to be a bright blue spark.if not change your pick up coil.make sure you also purge air out of the fuel lines.any leaks in the system or air in the lines will cause it to not fire.the bravada requires an ungodly amount of fuel pressure to keep your engine going.hope this helps