[Alekker]

I have a 2000 Tundra Limited with about 86k miles on it and the last couple of days, when i start cold and then warm up and put in gear the engine seems to bog (lights even dim) when i put the truck in D or R. Thirty miles later the check engine light comes on. Trip to the dealership reveals that 2 oxygen sensors have blown out, one on each side (before the cat).

So my question is: was the poor engine performance at startup and gear engage due to failing (and then failed) oxygen sensors or was something else in the motor causing this issue and that in turn burned out the oxygen sensors? Basically I don't want to go out and spend $200 on oxygen sensors if something else is causing the issue, because then I could be buying another new set of oxygen sensors.

Thanks!