i am a tech in MI customer blew his engine in his 2015 hyundai sanota. I am doing n engine replacement. we are using an engine out of a 2016 sanota and putting it into the 15 sanota i have it all hooked up except alternator and a/c compressor i tryed to start it. at first didnt want to respond with the key fab (push button) but now it will crank and crank but no start? i triple checked all my wiring and hoses seem everything is hooked up im at home now and wont see the car till morning but some pointers would be great. Do i need to have the pcm/ecm programmed
Yes, in most cases when you replace the OEM engine from any newer vehicle, you have to reprogram the ECU to communicate with the new engine. This is typically only done at a dealership these days.
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