AFM om alfa GTV6?

The AFM's electrical connector. It's on the side closest to the driver and is basically just like the Bosch connectors you have dealt with on other components but it's bigger. Remove this connector and spray the connecting points with electrical contact cleaner and then reconnect it. Next you will need to remove the AFM's black plastic cover. The cover is sealed to the body of the AFM with a strong clear glue, probably an epoxy of some kind. Carefully cut away the glue with a sharp hobby knife and then pull the cover off. This is a time consuming process, just work slowly and carefully and don't break the plastic cover. Once the cover is off inspect the internal components for obvious damage and clean out any contaminants. If everything in there looks Ok it probably is. If you want to keep your AFM's stock settings put the cover back on and seal it with RTV silicone, preferably clear or black. If you are looking for a little more performance scroll down to the next paragraph.

Here is a stock GTV6 AFM sitting on my tool bench. This AFM is used on all GTV6 :--

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It's fairly easy to adjust the AFM to signal the ECU to send in a little more fuel. This mod gives a minor increase in power and better throttle response. It does not effect fuel economy but it can increase emissions. It's a simple reversible procedure. The AFM's door is held shut by spring pressure. We can reduce that spring pressure which will cause the door to open farther for a given amount of air volume. This will cause the AFM to signal the ECU for a little extra fuel. The procedure is simple. With the cover off look at the workings of the AFM and find the large wire shaped like a "W" and secured with a little bolt. That wire secures a gear and keeps the gear from turning. Mark the gear where it is secured by the wire (that's where my screwdriver is touching it in the photo below). Try to make the mark with a sharp knife so it will not wear off. Now hold the gear still and loosen the bolt securing the "W" shaped wire. Once the wire is free of the gear's teeth rotate the gear counter clockwise five or six teeth and secure it in that position by bolting the "W" shaped wire back into place. That's it! put the cover back on, secure it with silicone and you are done with the AFM.

This AFM's spring tension has been loosened five teeth. You can see the original setting on the gear which is marked by silver paint. Paint wears off, so be sure to make a little notch with a hobby knife so you can return it to its original setting if you need too.

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You can also see the airflow meter (AFM) which the hose connects too at the bottom.

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