Step 1: Open the save you want the money on, let's call this *Main-Save*, Go into buy mode and purchase something to change the amount of money you have, I used one of the cheap ovens.
Step 2: Save-AS to a new file, let's call this *Temp-Save*, then exit to main menu.
Step 3: Load your *Main-Save*
Step 4: Select your lot but DO NOT click play, instead click the three dots *More* and then select Manage Household, you should be at the screen where it shows your Sims name, portrait, and funds.
Step 5: Open cheat engine and scan for (4-bytes, exact value) the value of your Sim's current funds.
Step 6: Exit to main menu, and load your *Temp-Save*, and then repeat Steps 4 & 5 until you should only have 2 search results remaining.
Step 7: Load your *Main-Save*, and view the manage household screen one last time, while on the screen change the 2 remaining search results in cheat engine to reflect the amount of money you would like, no need to freeze the results, click play and then you are done.
You will not see the funds increase in the manage household screen until your next load, at first it will appear as if it didn't work, however upon loading the game you will see your money, save and play like normal...[/quote]