AMP box? My diagram for a 91 civic DX shows one side of the injectors coming from the main relay and the signal straight from the PCM.
Is the amp box a synonym for injector driver? If so I'm aware the injector drivers are in the PCM on this vehicle, if not I do not know what an amp box is.
Originally Posted by
jdblack1
I've unhooked the TPS, IAT, and EACV before and it won't cause that problem. Check the MAP sensor. If it becomes unhooked or recieves a positive pressure then it will put the car into limp mode. Check that, if that doesn't do anything for you it could possibly be the amp box for the injectors. If it starts to fail it would cause you to limp, however I've never heard of one going bad.