I recently bought this 02, 2WD, Prerunner, with an automatic trans, and it seemed to be shifting properly......then I washed the engine. Nothing heavy duty, just wet it with the garden hose, sprayed the top of things with Fantastic, washed of the exposed areas with a soft brush. (I have done this before on other vehicles) And now I have to get to 4000 rpm's, and let off the gas to get it to shift out of first, and have not been able to get it to shift out of second. I reset the ECU (a&b) as suggested, with out any immprovement. Help!