My CARISMA have a very annoying RPM oscillation problem. It goes from
400 to 1000 or even more.
It does that all the time while idle. I have noticed that sometimes when I turn on the Air conditioner the oscillations somehow diminish, but not totally. I have a feeleing that it might be the Fuel Pressure Sensor, but I might be wrong.
For me it is quite difficult to buy spare parts for that car as I live in the Caribbean, and that car was out mostly for the European Market.
Any help will be extremely appreciated.
Cheers!!!