Originally Posted by TwoFifty
I don't want to come across as a douche but just to let you know, if you had a short or open in your wiring to the O2 sensor or a bad ECU the code would reset right away also and it would reset the same code.
And im confused, what do you mean when you say the car runs fine until the ECU kicks in?
Youre not coming accross like that at all. And I checked all wiring and connection. It was original o2 at 132k. It was checked 3x and cleared 3x.
And I mean car runs great much better until it heats up. No flutter, spool seems better. And then all the sudden heat rises and flutter suddenly kicks in.