Readers enjoy suspense, but they do not enjoy being tricked. Make sure not to surprise them in a bad way. Either providing too little information or the wrong information shows no respect for your readers.
Consider the theory of Chekhov's gun, which comes down to the principle that everything in your writing must have a clear purpose. Don't bring in irrelevant objects, people, or details. And whoever or whatever you include should do something essential.
Here's what happens when writers go too far in the other direction: important information indeed, but don't beat us over the head with it, please.
Image shows a bottle of acetaminophen with the warning:
"Contains Acetaminophen Always Read the Label"