Take a look at the Google Image Search results for 'Engine Diagram' https://www.google.com/search?q=Engine+Diagram&tbm=isch
In the first row I get two correct-looking diagrams, then a load of AI-generated ones. Three cylinder heads for four cylinders? Two crankshafts? Oil pan labelled Crankshaft? Oil pan labelled Connect in rod? A four-cylinder engine with seven valve springs? Parts labelled up to 39 but a 9-item key? Spark plug wires that loop back on themselves? A crank shaft where the pistons aren't offset in phase? Four-cylinder engines whose exhaust manifolds have three or five openings? Then in the second row, I get "Parts of a V6 engine" showing a four-cylinder engine - with an 'Exhaust malvol', an 'extaust manivol', an 'exsoust manivol' an 'oilolaivt manivol'
Savvy technical audiences have noticed this - and so when a diagram has a whiff of AI about it, they become extremely skeptical and distracted.
Personally I only use AI-generated diagrams very sparingly, and very carefully.