Hi guys. I bought a 1988 Cherokee xj and it had a blown motor so I bought a long block and swapped it in. Now I'm having some idle issues. When I start the vehicle in the mornings or after it has sat for awhile it will start fine but then it idles way down almost dying and sometimes does die. When the vehicle is warn it idles fine. I have read that the tps and iac help set the idle. Anyone ever had this issue. Any help would be great. Thanks