I wouldn't mess with anymore until you get the new temp2 and oxy sensor. It's a classic temp 2 issue not starting when warm. If anything just run the plug to the ECU following the pro training guide and write down want you find. Check the temp 2 when cold and check again when warm. I don't recall the values but I have a little plug I made with resistors that could be swapped in place of the temp 2 to "fool" the ECU into thinking it was seeing proper values. I just don't like playing "parts darts" trying to fix something as it's possible to swap in a defective new part. The fact that it starts cold and not warm. That it runs fine when started is a definite sign of a temp related issue. Running the ECU plug also checks your wiring to the various components. My old 91 was purchased cheap because of a hot start issue that a new temp2 fixed. Bill M
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