mods are in sig. last week i changed all the plugs. the plugs were autolite 3924s, same as what was in it. ran good for a few days, but now its loading up(too much fuel) and the temp rises past normal and take a long time to cool down(running). the CE light is on as well. normally it would load up after sitting for a while, but now its loading up as i drive it. it has been hot out, but that shouldn't mean it loads up. the temp climbed up to almost 210* which is NOT good. what should i check?