I run a diagnostic on my fiat siena/palio and I have a all bunch of result on various components, i get a .925 reading on the lambda (to rich) that I know but where can i find the correct value for the other reading, like injectors time, knock sensor signal and so on is anybody had this problem before?

Ask local dealer mechanic, else consult service manual, which seems impossible to find an English version of.

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https://haynes.com/en-gb/car-manuals/fiat

Email [email protected]
Ask to confirm if it's for your fiat palio model.

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https://www.emanualonline.com/Cars/...lio_Siena-Workshop-Service-Repair-Manual.html

Email [email protected] and give engine and Vin numbers, ask to confirm if the above webpage link is for your fiat palio, if it is purchase manual.
Mine is only available in Spanish.