Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Battery way wrongly installed by the owner, after it was being corrected, the car refused to rev up, DTC was the throttle actuator...I checked the ETCS fuse it was fine. Anyone out there who can help me out with the wiring diagram from the ETCS fuse to the ECU and back to the throttle actuator.