Friday 7 October 2011

2002 Kia Rio Cinco does good when idling but when given gas it cuts out.?

Kia Rio Cinco 2002 idles fine but when given gas acts like it wants to cut off and runs rough

We changed spark plugs and wires. New Battery.



changed fuel filter, change injectors and injector rail. Changed two sensors on top of water pump, a sensor on the vaccum and changed ignition coil. Put the fuel treatment in still doing it. Letting it run the gas out now. Going to try the fuel pump relay next. Any other suggestions?2002 Kia Rio Cinco does good when idling but when given gas it cuts out.?Get a diagnostic test ran to see if there are any codes. From what you are telling me, it sounds like the throttle position sensor is going out.

If you are electrically/mechanically inclined you can get an ohmmeter and a buddy (to move the gas pedal while doing this, and do this test while the vehicle is off), disconnect the connector to it, and check the resistance in the TPS. The resistance should vary on it respectably while the gas pedal is moved in different positions.

If this shows no results, then I would suggest getting some carburetor cleaner and while it just got fired up, spray a little along where the intake manifold meets the head and along where the throttle body meets the intake manifold. If the way it runs changes, then you have just pinpointed which gasket has gone bad, creating a vacuum leak.