Hey all. Wondering if anyone can help? I've got a 1988 Lebaron convertable, 2.5, TBI. Almost everytime I start it, cold or hot, it races anywhere from 2-3500 rpm for 5-10 seconds. Then it gradually drops to idle. I have cleaned and rebuilt the throttle body paying particular attention to the AIS. I have replaced the fuel pressure regulator, fuel injector, MAP sensor, throttle position sensor, coolant temp sensor, O2 sensor and updated the speed distance sensor. I also pulled and cleaned the EGR valve and checked for vacuum leaks. I pulled the codes after all this and 23 and 52 came up. The racing on starts is one of the reasons why I did all this work in the first place. Also sometimes while driving [before I did all of this work] if I just touched the throttle it would run at 30+ mph. If I put it in neutral, the rpm would be at 3000+. That is fixed now!,, but the racing on hot or cold start is still there. I'm thinking it's the throttle body temp sensor. I can't find anyone that sells it. The car just turned 100K and is a garaged Florida car with no rust. I've owned it since 1990. I was a master tech [early 1980's] foreman and service mgr for Chev. dealer so I have a mechanical backround. If anyone can help or let me know where I can get a throttle body temp sensor I would really appreciate it. Thanks in advance!