I have a 92 eclipse gs. recently the timeing belt shredded.. causing all my valves to bend and 6 to break.. i found a used one from local junk yard have sense replaced it... i do have everything lined up as to spec.. but it seems to idle realy high but tach shows to be normal.. and it will only idle with the tps,maf, ait and beramic pressure sensers unpluged

 

ARe you sure you have the same engine type in there? If you have a different engine the ECU may be trying to run it wrong. Also did you use the sensors from the old engine or did the junkyard engine come with it's own? Perhaps try switching them out?

 

the sensors are from the original engine.. and when i crank it over it seems like there is way to much compression.. because it it very had to crank. but once it turns over it starts but the idle seems vary fast. but the tach shows to be normal at about 1000