[lordmcdeath]

Hi all, me again.

My 1990 Grand Marqui (Canadian Model), has experienced a loss of power since my engine rebuild two years ago, and shifts rough between 35-45 miles of an hour (especially in overdrive).

It has recently started idling rough (sputters in idle and around 40-60 miles per hour).

I have replaced the (Idle Air Valve and Throttle Body Sensor), as well as cleaning out the throttle body. Please help. (will provide any additional info I can.)