A few things to check (none of which will turn off the CEL)
Base module fuses.
Fuses in the main fuse box.
Vacum leaks. (it would be a pretty big one)
From there, time to check codes. I've run into 119 engines with bad e-gas control modules and bad actuators causing the idle to be low and the throttle cable "feels" funny.
The base module is the back "black box" in the module case under the hood on the r/h side. (beside the blower motor)
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.