Fresh fuel is always the first thing wo start with when coming back to a stored vehicle. Are there any diagnostic codes stored in the ECU? No, no diagnostic tool does much of anything with these cars except for a certain advanced diagnostic tool which Toyota used to make... only available through them for a few grand, naturally; You can find out just as much with a piece of wire and a multimeter.... and a book. Some tools come with adapters for this type of system but their results are usually so far off and so bizarre I really wonder where they got their info.
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