Your Fiat 500 engine control system detects a problem, the computer stores the diagnostic trouble
code P0993 in its memory.
To figure out what is wrong with your vehicle you must first extract the P0993 DTC For Fiat 500.
On 1999 and later P0993 Fiat 500 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
P0993 Fiat 500 DTC Meaning
Powertrain Code - Problem is related engine, transmission and emissions systems.
SAE - Generic
TP Sensor Learn Not Complete
TFP Valve Position Switch-Drive Without Drive Ratio
If your vehicle failed a P0993 Fiat 500 test and the P0993 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses P0993 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look P0993 DTC For Fiat 500: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.