Do i need to change over the ecu from my subaru legacy 1991 sadan if im changing from auto to manual?

On a 2005 Toyota 4Runner why would the right turn signal and brake light not work but the tail light works? Is the 2005 Honda Accord front wheel drive rear wheel drive or four wheel drive? What is the maximum cargo capacity of the 2004 Honda CR-V? What is the fuel tank capacity of a 2003 Toyota Camry LE? What is the wheel torque for a Mazda 2008 3? Resetting the Tire inflation light in Toyota Highlander? Where do you plug a code reader in 92 Honda Prelude? Is the 2002 Hyundai Santa-FE front wheel drive rear wheel drive or four wheel drive? How do you change brake pad on 1992 Toyota Cressida? How do you program for 2008 Toyota Land Cruiser smart key? How do you replace the thermostat located on a 1999 Mitsubishi Eclipse? How many speeding tickets can you have before they suspend your license? How do you remove crankshaft bolt on 1997 suzuki sidekick 1.6 L? How do you change replace headlight bulb on 2006 Toyota Matrix and what headlight bulbs does it take? What is the rev limit for Ford 3.8? Were is the fuel pump fuse 93 Nissan Maxima se? What country do Toyota cars come from? Where is the Tensioner bolt located on a 2005 Toyota Highlander? How do you remove and replace the automatic shift cover on a 2002 Acura RSX part 54700S6MA81? Mr Jenkins accidentally backed his car into a stationary light pole The collision caused damage to his cars bumper trunk and tail light If the light pole was not moving how did Mr Jenkins car?

Do i need to change over the ecu from my subaru legacy 1991 sadan if im changing from auto to manual?