Blocked EGR valve all lights came on on dashboard have been told to get it remapped to get rid of lights' this happened on previous Toyota 2007 model but just blocked it of and no problems so why do lights come on in this model and people tell me to get it remapped

Robert gardiner, October 2017

Probably the lights some on because there is more diagnostics going on. Possibly people are suggesting the best way they know to get round the problem.

asdkllkd, October 2017