Check Engine 1-4 light issue

2.7’s don’t need a code reader. For U.S spec, the code button is in their rear passenger engine. Need to remove lateral cover. The flashing lights are on the cluster inside the car. The check engine light will flash the codes in pattern. You have to count to the flashes to discern the codes.

 

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It was the O2 sensors and once replaced everything was good. Sold that car two years ago

 

@jfink - replacing the O2 sensor fixed a 1121 code? From the Ferrari Workshop manual 1121 appears to be an RPM sensor. My car is currently reading a 1121 error across both banks (95 vehicle), but only Check Engine 1-4 is lighting on the dash.

 

You will always get 1121 if you read the codes with the engine is NOT running. If engine is running you should not get 1121 codes.