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!
Opel Astra (2002)VIN: W0L0TGF4825228351Z18XE Engine, Manual transmission5.3/5.4 ABS with traction control Dx tool: Topdon Phoenix Lite2
Help wanted understanding the C0256 DTC I am trying to diagnose an Opel Astra (details below) that displays engine, ABS, and ESP-traction control warning lamps when the engine is revved to high RPMs STANDING STILL !Opel TIS 2000 identifies C0256 as "Engine Torque Reduction Malfunction" but gives no further diagnostic steps other than to suggest that either the ABS or ECU units are at fault. Toyota documentation on the other hand identifies C0256 as related to a back/left wheel solenoid. Other pieces of the puzzle:
Intermittent P0220 and P1550 electronic throttle codes. As soon as I get out of bed from the flu I'll be digging into these.
Live data for wheel speed sensors shown speed of 2.53 kh/h when car is at rest!
Any and all help understanding this system greatly appreciated!~ Derek
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