Ihave a 1990 EclipseGS 2.0 that has developed a cold start issue. It began 6 weeks ago after I replaced a starter. When cold it turns over fineand start to catch but willnot run. When it does finally start running it will only idle - if I step on the throttle it will die. After it warms up it is ok. I can heat the throttle body up and it starts fine. This only is happening when the temp drops below40degrees and the car sits several hours....overnight or at work 8 hours. When the air temp is back above 40 degrees it will start fine. It has no problem running when warm.I checked for vacuum linesall seems intact. No previous problem over last 2 years. Any ideas ?

 

No need to double post, check the 1g eclipse section.