u/Initial-Welder6967

I have been battling a P1300 code for months and at last I have fixed the issue. My 1996 celica gt would throw this code and start intermittently until it finally gave out and stopped starting. After replacing some of the basic things to no avail (ignition module, spark plugs, EFI relay) I finally went deeper. It was the ECU, a capacitor had melted acid all over a trace on the board. Sure enough that trace lead to the IGT pin out on the ECU. Soldered a new wire from the resistor to the IGT pin and boom car starts right up now. The ignition signal trace was completely fried due to the melting of the capacitor. So if any of you guys are battling this common code, check your ECUs ;) best of luck.