A month ago I have a problem with injector for cylinder 3, it was electrical problem with injector -short circuit, so I bought replacement injector and code it to ECU.
My question is, as you can see in attached picture, only one injector have six number and letters code, but the rest of them have six and the after dash again six.
So, what is the difference and why only one have 6 letters and numbers code ? Is this that replaced one ?