Ok So I replaced the timing belt per requirements and now my car wont idle when it warms up, it idles fine with no missing when its cold but as soon as the thermostat opens up thats when it dies and wont stay running unless I keep in the gas.I also replaced the FPR as I thought this was my original problem. All spark plugs are firing and are dry, no oil or fuel but a couple of them are black and sooty not white. Any suggestions would be helpful