Afm M35

[rssubaru]

Another afm to the list. They keep dying this one lasted 6 months. Any fixes for this problem . They alway die on hard acceleration . Maybe A voltage problem

[scotty nm35]

The best option would be to buy the plugin Fcon for sale and go map sensored.

I wonder if the v35 or r35 afm may be an upgrade, do they have have a longer lifespan?

[PN-Mad]

I wonder if the v35 or r35 afm may be an upgrade, do they have have a longer lifespan?

I haven't heard of the same issues on the forums from Z owners. However the characteristics of the AFM are most likely quite different, and we have no way of tuning the AFM table. Does emanage have AFM table adjustment, or just switch over points?

So were stuck giving the same old advice - if you have a oiled filter (K&N) get rid of it for a dry, clean the AFM in contact/afm cleaner overnight and it might come good, and look for shorts in the wiring to the loom that could cause a short and fry the unit.

[Rudi_ARX-TURBO]

Yes an answer would be great as I have been thru 4 of them and seems to be in the warmer times of the year

[Commsman]

What component/s are in there? Probably a diode & resistor, lol.

If someone wants to post me a broken AFM, I'll try to work out if a 'field refurbishing' kit is possible. The components might only cost $2...

I've never had mine go faulty, & I've had it in/out dozens of times when playing intakes. There is something weird going on for those guys who have broken multiple AFMs.

[PN-Mad]

There is something weird going on for those guys who have broken multiple AFMs.

Agree 100%

I've had Rudis car logged, and there was nothing in diagnostics logged, and nothing dodgy going on with the voltage output through the test. It may be a suspect pin or solder within the ECU, or even bad earthing from somewhere. I dunno

[scotty nm35]

If replacing the afm fixes the problem then I guess the afm's are faulty. As far as I know there is no repairing them, I have tried and failed. Grab one of these guy's old ones and have a crack if you like Leon but they are more complex than you think.

Like I said, the best option would be to replace it with a more reliable unit, yes the emanage ultimate does have various maps for z32 afm's etc I believe...

[bigkevracer]

Pretty sure I still have my old one if you want to tinker Leon. Let me know and I'll post it up.

[PN-Mad]

emanage does appear to have maps for the Z32 and VQ35de AFMs. But I have no idea if I just click that button it'll scale it fine- thats a tuner question.

[Commsman]

If replacing the afm fixes the problem then I guess the afm's are faulty. As far as I know there is no repairing them, I have tried and failed. Grab one of these guy's old ones and have a crack if you like Leon but they are more complex than you think.

So that pic is our standard AFM pulled down? Didn't know it had circuitry inside, lol. I thought all the smarts were done at the ECU end.

Pretty sure I still have my old one if you want to tinker Leon. Let me know and I'll post it up.

Yeah, send it up Ryan & I'll have a look. The problem could be simple, or not, but it's worth another go at it for the sake of the poor buggers having continual problems. And Scotty, you don't use your welder to fix these

Edited September 26, 2012 by Commsman

[scotty nm35]

I used to do component level electronic repair but this is out of my league, it is potted in a soft silicone and makes getting to the board difficult without damaging it. It is definitely not designed to be repaired, only a couple of components can be de-soldered anyway.

The circuitry would smooth the signal and probably adjust the airflow voltage dependant on temp and perhaps air pressure. It would make manufacturing the ecu and tuning easier.