runnig to rich

[gsxr600]

I just got my hands on a 84' toy supra and it was running find until I stoped and started it again then all of a sudden it ran really bad, any help on what is the problem?

[TcmaBoy]

Need more info. Get a Haynes manual and do some basic troubleshooting

[gsxr600]

I changed the spark plugs and cap/rotor, wires, thinking the may have been, because the old plugs had lots of curbon in the tip and the other thing I noticed was an exh. leak in the manifold that wasn't there before, could it be the cat? or engine coolant temp sensor for ecu? or some other thing?

[TcmaBoy]

Did you double check your plug wires to make sure the pattern is right? Is the timing set correctly? Is the engine getting fuel? Have you checked compression?

[gsxr600]

come to find out that the cheap air filter that was on the car had a part missing that got stuck in the mass air sensor that was telling the ecu that it was wide open so it was dumping fuel like a mad man, pulled part out every thing is back to normal, thanx for helping