Can anyone help me with my problem?: I have a 93 chrysler voyager which i recently changed the spark plugs to, and i have checked and recked that everything was put back & plugged correctly, however, whenever i turn on the van the idle is to high, and the r.p.m. rises above 3,200 on Park. It lowers only about
400 r.p.m. whenever i put it to Drive and about 600 r.p.m. when i put it in Reverse and it stays at 3,200 if i put it in Neutral. The r.p.m. is way too high and i don't know what's wrong with the van. I've checked & recked everything making sure that every cable, plug, & component was in correctly, but it is still too high! I can't figuire it out and would like to know why the idle is too high. Can anyone please help me with this problem?