yeah thats what i was thinking but i read they can scan your ecu and they know anyway if youve done plug and play. hows your oil porblem i read your thread did you wipe your oil stick clean and dip it to get a accurate reading?
sounds like the plug and play may be the way to go, if it really is undetectable
they cant, the stock ecu sends out a signal and the piggyback jstu changes the signal before it gets to the engine. nothing changes on the stock ecu. jstu make sure u ahve everythign plugged in right
I thought it worked backwards to that.. I.E. the piggyback ecu intercepts the signals coming from the sensors and feeds modified signals to the main ECU.