forgot to mention, culprits on k11 ecm losing power is usually rotted EGI fuse in the engine bay, headlamps also rot. The nats lamp wouldnt flash though if this happened. Over the years , back even as far as 98 or 99 k11s were always being towed in for this problem. The nats system is simple it consists of something like this:-
Red chip key --- Antenna Amplifier--- Nats immu ---Engine ECM.
The antenna amp energises the chip sends the encrypted fixed signal to the immu (immobiliser control unit), if it likes the signal , i.e. if it matches the immu then sends a signal to the ecm to allow starting. i have a way of cutting out the immu of this loop therefore rendering the nats system dead. PM me for details as i wouldnt want to issue details for the world to see with it being a security concern.
