the fuel door opens, and sometimes the trunk open, my vehicle is in the next warranty and I cant afford $150 just for the diagnostics to get done, so what should I do?
I don’t understand what your problem is (other than not having $150) so there is nothing I can even suggest.
Could you describe the problem(s) in more detail?
Cars do not care at all what you can afford when they need repairs. Most people in your situation would use a credit card.