Shuttering in low RPM, all gears, intermitent blinking CEL

I have a shutter when slowly accelerating, happens right around 1500 rpm and stops around 2000 rpm. This happens regaurdless of what gear I am in, including park. Also, the CEL light intermitently blinks, especially when I turn on the cruise control. Any ideas?

Throttle position sensor

Also check your coil mine did this before on my 2001..