Help Me Fix My Busted Car So I Can Work

I've been unemployed for about two months now. My wife and I have been getting by but today I took my car into my mechanic for a check engine light and found out repairs are going to cost over $1800. Its the kind of issue that the more I drive it the worse it gets and could cause damage that could cost way way more if its let go. I start a new job on Monday (thank God) but I have a long commute and if I let this go I risk doing damage that puts that job in jeopardy. 

Anything you can do to help cover the costs so I can get back to work would be hugely appreciated. Thank you so much for anything you can do to help!

Ryan