Uniair error after flush and oil change - Alfa Romeo Forum
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(Post Link) post #1 of 15 Old 07-05-17 Thread Starter
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Uniair error after flush and oil change

Hi all,

I recently bought a MiTo 1.4 MA 135.

As a precausion I had the MA unit flushed and an oil change.
When I picked up the car, the engine light was flashing, they hooked it up immediatly and there was an error stating that the uniair module was not learned.
(best translation from Dutch I can make.)

They cleared the error and all was well... for one single drive.

After starting the car a second time the engine light is blinking again.
I called the garage and they said I simply need to drive the car so the module will "learn" again.

Can anyone confirm that simply driving the car is the fix?

Thanks in advance.
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I am not sure if this is the case. I had to relearn my multiair unit after having flashed the ECU and it was a fix process (3x times reving up to the limiter, put a gear in and out, press the clutch) and could only be done with 90° engine temp.
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Originally Posted by JnL View Post
I am not sure if this is the case. I had to relearn my multiair unit after having flashed the ECU and it was a fix process (3x times reving up to the limiter, put a gear in and out, press the clutch) and could only be done with 90° engine temp.
Whell I will try this tomorrow immediatly!

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ah you misunderstood me, this was during the flashing process with an external software on a flasher. I neither know how the garages are doing this nor if you could do this on your own just by redoing the steps the flasher told me.
But what I can say is this: when the multiair-unit is programmed, it is programmed, no engine lights anymore immediately and no more further steps like driving around.
What you do by driving around is adapting the software of the ecu to your driving manner, and nothing else. You can recognise this by accelariting several times in a row. The behavior of the engine (accelerating, throttle response etc.) will then be different to the one at the beginning of you driving.
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(Post Link) post #5 of 15 Old 08-05-17 Thread Starter
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Okay I understand. Can I damage the car if I keep driving it?

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Edit: Well just took it to work (25km mostly highway) and the car drives normal.
DNA is still functional as well, only the start/stop system is unavailable.

Last edited by Loei; 08-05-17 at 05:13.
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When there is no engine light anymore, I assume that everything is fine.

Start and stop system is nearly always unavailable, so nothing to worry about
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Well the problem is that the engine light is still flashing due to the uniair error.
But the car itself is driving fine.
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Hello , your error won't go away. Go to a service where they have multiecuscan , connect to the engine and run UniAir actuator dispersion corrector (engine needs to be at 90 degrees , engine running) . In a few minutes your unit will auto-calibrate.
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Ah ok, I see.
I would then try another garage. They have to relearn the multiair correctly and not just deleting the error code. Blinking engine light is definitely not normal and not good for the engine (although you have more or less normal power).
You could look into this article: Multiair: how it works - Telegraph
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is a simple thing to do. Just search for someone who has multiecuscan. After you start the UniAir actuator dispersion corrector , the engine will do it's job. The steps are :

1. Drive the car until you have the temperature at 90 degrees.
2. Connect the multiecuscan . Turn the engine on.
3. Start the UniAir actuator dispersion corrector . DO not touch the pedals. The engine will starts reving at about 1.6k rpm for a few minutes. After that it will return to 750rpm and the message will appear (successful operation) and you will have to turn the key off. After that you can run self-adaptation parameters reset.

I had the same problem after I run the "Oil Change" and that's how I fixed it . Now my car is running perfectly
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Thank you Andrei for your reply.
Did the car not run well before you ran this procedure?

Mine is running fine its just that the engine light is blinking.

I called the garage and they said that if the car would learn itself, the light should have been off by now.
Going to bring it back in this afternoon so they can have a look tomorrow, probably worth mentioning this procedure and that it has to be run with a warm engine.
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Had the car at my garage for an hour. They ran the procedure and all is well now.
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Good!
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Quote:
Originally Posted by Andrei.v View Post
After that you can run self-adaptation parameters reset.
The self-adaption parameters will be relearned by driving around, won´t they?
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(Post Link) post #15 of 15 Old 2 Weeks Ago
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Quote:
Originally Posted by Andrei.v View Post
is a simple thing to do. Just search for someone who has multiecuscan. After you start the UniAir actuator dispersion corrector , the engine will do it's job. The steps are :

1. Drive the car until you have the temperature at 90 degrees.
2. Connect the multiecuscan . Turn the engine on.
3. Start the UniAir actuator dispersion corrector . DO not touch the pedals. The engine will starts reving at about 1.6k rpm for a few minutes. After that it will return to 750rpm and the message will appear (successful operation) and you will have to turn the key off. After that you can run self-adaptation parameters reset.

I had the same problem after I run the "Oil Change" and that's how I fixed it . Now my car is running perfectly
Thank you for this information because I had the same issue yesterday.

Some additional information though because I was struggling to get the test started:
The essential temperature for this test is the "Engine temperature" in MES! NOT oil or coolant temperature!
As I understand you need a minimum temperature of 83 degrees Celcius before this test will start at all.
I had to drive the car until operating temperature. But for some reason, the engine temperature was not climbing higher than 81 degrees. Until I parked the car, revved a couple of times and shut the engine down. The temperature rose above 90 degrees after a while. After that happened, I started the engine, performed the test and finished successful. The blinking engine light and "Start Stop Unavailable" disappeared.

I still wonder if the oil change execute in MES is really harmfull for the ECU. Somehow the "error messages" look like part of normal system behaviour to me. It's like you tell the UniAir system/ECU that the oil has been changed. And the UniAir system/ECU responds with these error messages that you have to perform the UniAir actuator dispersion correction because of the new oil...

Last edited by DennisK; 2 Weeks Ago at 06:04.
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