IF your vehicle has a Standard Transmission,
DO NOT send your ECM/PCM in to have it replaced or Repaired,
put it on your top shelf
All of those companies will send you back a unit for an Automatic & it will never work in place of a Standard Stick unit
& some how they lose the one that you sent in
IF you do send a unit in, write down every bit of information on your original unit, take a picture with your cell phone.
IF you take a chance & send in your Standard Shift Unit to be repaired, get it in writing that they will not switch it out, that the original is the only one that you will accept
I would have good local mechanic look at the Unit & if they can, have them record what your unit is doing that is causing your issue, maybe there is a way to FREEZE FRAME the info