'07 K12GT a Throttle Hesitation / Stutter
Okay guys, from doing research on the web and this forum it seems as though it may be the O2 sensor?. Here's the scenario......traveling along at lets say 40mph in 4th gear, when I twist the throttle, there is a slight delay (1-2 sec) and then it starts moving on. I have been reading posts about changing it with the Bosch has helped and others say it hasn't. Most of the posts are a few years old...,does anyone have any insight that might help me?
Also, side note,....every once in a while from a high idle if I let off the throttle, it will backfire a small amount, not a loud pop, just a little .....plop...plop. Again....any ideas?