New Mondial owner - engine light on

How to Befriend a 348/Mondial t ECUs:

1. Strip Down the Trunk: Pop open the trunk and remove the felt covers facing the rear seats. This will expose the two mysterious ECUs (a.k.a. the car's twin brains). Each ECU represents one side of the engine.
   
   
2. Ignition Ritual: Insert the key into the ignition and turn it to the “on” position.
   
   
3. Button Press Extravaganza: Locate the magic button next to the ECU (there will be two). Press and hold it for a solid 5 seconds, then release. Voilà! The check engine light should now illuminate, indicating which ECU you’re communicating with.
   
   
4. Flash Dance: Let go of the button and enjoy the pause before the long flash (2.5 seconds). This is the car’s way of saying, “Ready, set, go!” After this, the engine codes will start flashing at you like Morse code. Long flash means start and end of a code. Your are now fluent in blink-speak.
   
   
5. Decipher the Blinks: Each number in the code is a half-second flash followed by a pause. It’s like a bizarre light show. For instance, if you see four flashes, pause, two flashes, pause, one flash, pause, and two flashes, you’ve got code 4212. Now you’re a certified car whisperer!
   
   
6. Next Code, Please: To move on to the next code, wait for the long flash after the current code. Hold down the button during the long flash and release it during the pause. The check engine light will flash again, signaling the start of a new code.
   
   
7. End of the Show: When you’ve pulled all the codes, the car will just keep giving you long flashes, saying, “That’s all, folks!”
   
   
8. Erase the Evidence: To clear out the old codes and start fresh, wait for the ECU to give you nothing but long flashes. Then, push and hold the button for 10 seconds. The ECUs will sigh in relief as they forget all their old complaints. Congrats, you’ve just befriended your car’s ECUs!

Now go forth, car tamer, and may your check engine light!

Motronic 2.7 error codes:
Hot wire air flow meter 1111
Engine coolant temp sensor 1112
Throttle potentiometer 1113
Lambda sensor (O2 Sensor typically unplugged or bad ground or bad sensor) 1114
RPM sensor 1121 (this code will be shown if checked when your engine is off)
Battery voltage 1122
Secondary air solenoid valve 1123
Purge valve 1124 (the purge valves are marked as part #21 in this diagram)
Lambda regulation Additive value for self adaptation (O2 sensor or coolant temperature sensor or MAF) 1211
Lambda regulation multiplicative value for self adaptation 1212
Lambda regulation intake manifold compensation (MAF or O2?) 1212 (1213?)
Short circuit on idle regulator 1311
Open circuit on idle regulator 1312
Electronic control unit 1313
Injection valve 1 1411
Injection valve 4 1412
Injection valve 2 1413
Injection valve 3 1414
Malfunction Indicator Lights (MIL) 1444 *dash light burned out
Valve 4111
Stroke sensor 4112
Power module not used 4113
TDC control unit recognition 4114
Catalyzer temp ECU 4121
Catalyzer temp too high 4122
Speedometer signal 4123
Compressor connection signal 4131
No error detected 4444


What code(s) are you getting?

 

Post #5 at this link may be of some help 348 CEL - Error 1212 - Any advice? | FerrariChat

 

Hi!
I've had this code before and it came down to the MAF. Easy way to diagnose if this is the problem. Swap them out (very easy to do on your own) and see if the engine light codes swap. If the lights switch to the other side, you know you have a bad MAF. They are no longer in production. You can get generic ones from China but they won't have the same AF map. So I suggest you send them here for refurbishment ($250) You have to clear the codes outfirst and then go on a drive to have them light up again. Here is a photo of the MAF

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RPM sensor is an easy fix, that I suggest you buy the KIA RPM sensor and just swap it up. You'll need a lift though.