MAF Problem ???? - Alfa Romeo Forum
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Help MAF Problem ????

I have just changed my MAF sensor for a new one, since the change I have noticed the car is a bit twichy on the throttle since fitting the new MAF.
Tonight on the way home from work the engine did not seem right lumpy on tickover and not running correct .

Anyone any ideas please.

Cheers Hammo.
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Re: MAF Problem ????

could be a dodgy MAF, have you tried disconnecting it to see if it makes matters worse ? if you have and makes no difference then the MAF needs attention...could always give it a clean as follows...

Remove the MAF - undo the metal clips with a pair of small pliers or lever off with small screwdriver, undo the cable tie which keeps the connector cable tidy to the air duct.and then the connector remove the MAF.

There are 2 TX secrurits screws that clamps the sensor to the MAF body...these can be undone with pliers as they are not to tight.

Pull the sensor head out and stick the MAF body a bowl of luke warm water and slosh about...use a sponge to clean the inside of the MAF body but do not touch the Mesh. then put back in the bowl and leave for about 20 Mins...

To clean the sensor head you need anti-static cleaner from Maplin or any radio hobby store..

Spray liberally all over the head......

You will see a channel in the sensor head, and will notice a wire running can clean this with a cotton swab with cleaner applied.....don't go to mad just apply gentle pressure.

At the side of the sensor is a metal plate within another can clean this using the cleaner and some tissue, wedge it in the grove and slide in and can use a small screwdriver to exert more pressure to clean the plate and the edges.

The sensor heads..electonics is sealed so don’t worry too much...but still be careful.

When this is done....rinse the sensor head under luke warm running water from the tap and just cover the top part of the head where you have cleaned...

when done remove the MAF body that was soaking, test the mesh for cleanness with a cotton swab, if still dirty use the anti-static cleaner to clean more..and re wash in luke warm water.

Lay both the sensor and the MAF body...on a tea towel on a radiator to dry naturally...

Re-Fit the MAF all back together and put back on the car.

all the best

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Re: MAF Problem ????

Is the replacement MAF a genuine Alfa Part made by Bosch. If not and you bought it off Ebay then I'm afraid you wasted your time and money. I speak from personal experince, having made the same mistake and had the same effect as you are having. Send it back and get your money back. Buy a genuine one, albeit it will cost you more money. If it is a genuine Bosch unit, the Ebay sourced type are virtually identical in looks, have all the numbers on but not the Bosch name, it could be faulty. See if the supplier will replace it. I wouldn't attempt to clean the new unit incase you damage it, there should be no need anyway. If it does get damaged you will not stand a chance of getting your money back. Good luck.
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