If this is throwing all sorts of codes, then that is usually indicative of a wiring problem. The most common being a bad ground. If you recently replaced the ecu or wiring harness, I would remove the plugs and look at the pins. If there is any dielectral grease, remove it. Look for any discoloration of the male and female pins. Look at the females and make sure they are not opened up. Basically, make sure you have great connections. Then start looking at your grounds.
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