Vacum leaks, base CO setting, the vacum switch for the EZL located in the intake, wrong heat range plugs, leaking injectors, leaking fuel pressure check valve on the fuel pump.
You'd do well to find someone well versed locally to run the diagnosis on this as inexperience can cost a small fortune.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.