I have a 91 non-turbo with 91k one owner miles with 2 issues: poor idling (rough) and when it does run, will not go above 25 mph. I have replaced the fuel pump (43 psi), throttle position sensor, ecu, and mass air sensor. Also checked to see if the cat was plugged (not), drained the tank and flushed the fuel system with fresh gas. Fuel filter is OK. Plugs and wires were replaced. Still no change in behavior. For the past 10 years or so car has been kept in central Florida.
Any thoughts on a cure would be greatly appreciated...thank you!
the Yeti