Toyota Repair Problems? Ask a Mechanic for Answers ASAP
So you saying the check engine light is now blinking?Is the engine running normal?
The IAT would not have an effect on the distributor. There are many things that can affect the temp reading, coolant level, the thermostat, cooling fan operation as well as the sending unit. See if the light will clear by disconnecting the negative battery cable for a few minute.
Your very welcome, thank you as well.