i just removed battery terminal to install HID.(i always remove source before doing ele. work). After re connection, RPM dropped near to 0 and sometimes engine stalls. it was working perfect before removing terminal. i removed positive terminal again, waited for 10sec and reconnect. but problem is still there.
I myself have faced this problem around 10 times, the rpm will set according all your gadgets i.e lights, ac horn the ecu will set the rpm according to the load
Sent from my MT11i
well driving more didn't fix it... what i did now is unplugged ECU (both ports ) and kept battery connected. re plugged ECU ports, started engine... and after few seconds rpm were normal. then turned on lights.. again rpm fell but recovered ... now its fixed...