Cooling Fan Timer Circuit
I'm tying to setup a 12 volt 2.5 amp injector cooling fan in a car and I want the fan to turn on for X minutes right after the ignition key is OFF. I was looking at this programmable relay - https://www.amazon.com/Miniature-cycling-Cycling-Industrial-control/dp/B015Z2EQCU/ref=pd_lutyp_simh_1_3?_encoding=UTF8&pd_rd_i=B015Z2EQCU&pd_rd_r=5202NNSP2PM3EE5DZVTA&pd_rd_w=SKMnb&pd_rd_wg=rJ4Td&psc=1&refRID=5202NNSP2PM3EE5DZVTA
Here is the website for that relay with instruction manual - http://www.3rdbrakeflasher.com/
I'm not sure if I need another relay and hook to 87a or if there is a better circuit I can make.