When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I bet it's a fuel temperature sensor error code. For some reason, my car likes to throw that error when I play with the power. Go to Autozone and ask them to hook it to a scan tool and clear the code. Or better yet, buy a scan tool so you can do it yourself - problem solved.