Hi,
The first thing you need to do is have the computer scanned for diagnostic trouble codes. Since the check engine light came on, we need to know what code was set.
Here is a quick video showing how it is done:
https://youtu.be/YV3TRZwer8k
I realize most people don't own a scanner, but often times a parts store will do it for you at no charge.
Have that done and let me know what codes are retrieved. At this point, I suspect it may have something to do with the crankshaft position sensor which is mounted right by the starter (near the transmission bell housing which was removed and replaced).
Take care,
Joe
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Wednesday, February 24th, 2021 AT 3:00 PM