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Originally Posted by blowin 4  spoke to soon tried my ecu's in other car ran's good this can mean only one thing car is to rich at hot start its not cold start sensor that's new so i guess i really need to work on idle fuel setting's and low tps setting maybe even play with idle timming ... |
The head temp sensor controls both cold and hot fuel enrichment during starting. If the sensor is bad it will be good for cold starts and inject too much fuel during a hot start. I hate to keep harping on this but the head temp sendor will cause this exact issue