Two weeks ago i took a 150 mile trip to the coast and the header on my Tj completely ripped apart just below the collector tube. It happened the first night of the trip so i i had to park it all weekend and trailer it back home. Two weeks later the new one comes in and i stay up all night putting my jeep back together. No problem! this isn't the first time i have taken out that header. Finally ready to start it and the it turns over fine and then all of a sudden the RPMs just take off! As soon as i start the jeep it begins to rev and it seems that it would readline if i didnt cut the key off! It ran fine when the header broke it just sounded like a monster truck!! My check engine did come on i think it was because of the O2 not reading. But the check engine is gone after disconnecting the battery. The throttle is not getting stuck and the linkage is not tight of sticking. Any help would be much appreciated! I need my Daily driver back!