Why does my engine warning light come back on after I got the two lambda sensors changed, which it said was the problem? My automobile is a 2003 Volkswagen Polo.
Filed under fault - Asked by Danielle Automobileey (Delvin) - Tue, 05 Feb 2013 21:02
Two things could be happening here: 1) the ECU (engine control unit) may not have been reset after fitting the new lambda sensors or 2) there could be another problem elsewhere.
Best to get the automobile back to the garage that did the work to investigate further.