So I've recently had an issue with my WK misfiring and bucking like crazy. It felt like I was riding a bull.
I solved the issue by replacing the crank sensor that cost $43. Easy repair.
The point I'm getting at is that....my gas milage went from 12 mpg to nearly 14mpg and after I drive it for a while longer, I know I can get in between 14-15 mpg.
Not only did I replace the crank sensor, I reset the PCM as well. (disconnect negative terminal from battery, turn ignition [ON] for about 2 minutes)
^^After doing those 2 things, my WK has been running like a top. Acceleration is through the roof. It's no SRT but it's a lot better than it's ever been. Some say resetting the PCM will boost acceleration but I truly believe that the crank sensor has played a major part in performance because of how well and steady the idling has been. And I've been thinking about having the PCM reflashed because of the lost upgraded software due to the reset but I don't think I will.
I also think that resetting the PCM has allowed it to adjust my acceleration with the 32" tires.
I would advise anybody that has recently mounted larger oversized tires to go out and reset the PCM.