Did you replace your ECU chip with one programmed for this engine and injectors? Did you pull ECU codes, or just look for a light? Not all codes generate a light. Do you have a Selin translator? Do you have it on the right setting (add/avg)? Have you verified all of your connections are going to the right place, and you haven't done something like swap #6 with the O2 connector that's right there? Have you verified the PTU is working correctly? Verify fuel pressure. Verify no major boost leaks. Etc.
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