Howdy Y'all recently run into a problem with my 92 3.0L v6. It bucks and misfires after the engine warms up and occasionally dies. It idles great and runs perfect when cold.
I have replaced
-fuel pump
-fuel filter
-fuel regulator
-maf sensor

Any ideas? I cant seem to figure it out. Possibly something with the erg valve? any advice I could get would be greatly appreciated. thanks!

 

1992 3.0l still used distributor and TFI module for spark.

TFI modules often became heat sensitive as they got older.
Good read here on troubleshooting TFI system: Ford EEC-IV/TFI-IV Electronic Engine Control Troubleshooting

Print the worksheet