[mpe235]

The diagnosis and replacement of the ecm should be free of charge. 8yrs 80k miles. P0037 is for the oxygen sensor heater. You didn't replace the o2 sensor with an aftermarket one did you? On the recall they do not replace the ecm foam they just take it out. You should clarify with the dealer exactly what you are willing to pay for. In order to get them to look at it you will probably need to authorize a diag fee. You should tell them that if the problem is found not to be the ecm that you will pay the diag but if it is the ecm you are not willing to pay diag on a warranty repair.