Adz The Rat 0 Posted February 24, 2009 Ok I have done a search and couldnt see anything. Today we replaced my ECU relay as it was cutting out sometimes, now tonight I have been for a run in it and something is definitely different. It feels as if the engine has lost a little bit of urgency (bad description that), almost like its choking a bit or restricted somehow. Should replacing the relay alter the way the car performs at all? I swear it doesnt feel as fast. Just a thought but could the car have been mapped previously and when we disconnected that it has gone back to standard map?? Sorry if that is way off but not very good with engines. Adz Quote Share this post Link to post Share on other sites
fla 9 Posted February 25, 2009 No, the relay shouldnt affect performance at all. Do an ecu reset and see how you get on. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted February 25, 2009 Just a thought but could the car have been mapped previously and when we disconnected that it has gone back to standard map?? There's your answer. If you disconnected the ECU, you've lost all the learned adaptation values. It will improve again with more miles. Quote Share this post Link to post Share on other sites
