Ecu Resetting

[michaelgeorge]

IF YOU WANT TO RESET THE ECU BACK TO FACTORY SETTINGS YOU HAVE TO DISCONECT THE BATTERY LIVE AND NEGATIVE LEADS FOR AT LEAST ONE HOUR . THIS WILL WIPE THE ECU OF, LOGGED FUEL ,AIR ,AND TIMING SETTINGS AND IT IS VERY USEFUL IF A NEW MOD IS FITTED OR YOU HAVE TAKEN A MOD OFF AND RETURNED IT TO STANDARD (ie K&N 57i INDUCTION KIT BACK TO A PANEL FILTER) .YOU THEN NEED TO CONNECT THE BATTERY BACK UP AND DRIVE THE CAR FOR 30 MILES OR MORE DEPENDING ON MODEL .

WITHIN THOSE 30 MILES YOUR CAR WILL LEARN HOW YOU DRIVE AND WILL ADJUST ALL THE TIMING, FUELLING, AIR ETC TO SUIT . ALSO IT WILL LEARN ANY MODS YOU HAVE DONE TO THE CAR AND WILL ADJUST THINGS ACCORDINGLY .

PLEASE NOTE THIS WILL NOT EFFECT A REMAP OR CHIP IF FITTED TO YOUR CAR , AS THE ABOVE SHOULD HAVE BEEN LOCKED INTO YOUR ECU BY WHOEVER REMAPPED IT OR CHIPPED IT AND CANNOT BE WIPED OFF .

PLEASE BE AWARE IF YOU DO NOT HAVE YOUR CODE FOR THE STANDARD VAUXHALL STEREO YOU WILL NOT BE ABLE TO PUT THE CODE IN WHICH WILL MAKE THE STEREO USELESS AND A TRIP TO THE MAIN DEALER TO SORT IT OUT .

YOUR CODE CAN BE FOUND ON YOUR VAUXHALL CARD PASS IN THE OWNERS HANDBOOK WALLET WHICH SHOULD HAVE COME WITH THE CAR .

[SRi Tourer]

please note that this will not erase any fault codes recorded by the ecu untill you have the correct replacement part fitted

[michaelgeorge]

nice one andy .

[peter77]

hi i had crank and cam sensors replaced and found out that my ecu needed reprogramming now the engine management light comes on saying its a crank sensor ( i did the paperclip test ) if i did what you say by removing battery for an hour would that wipe my problem
cheers

[michaelgeorge]

If you have replaced both items your management light should have gone out as the ecu recognises that a new one is fitted and the problem has been corrected . A battery re-set is a good idea this should solve the problem .