Jump to content
SAU Community

Afm M35

rssubaru

By rssubaru,
in Four Door Family & Wagoneers

 Share

Recommended Posts

PN-Mad Grand Master

PN-Mad

Posted
Posted

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.

Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6550535
Share on other sites
Commsman Veteran

Commsman

Posted
Posted

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.

Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6550645
Share on other sites
PN-Mad Grand Master

PN-Mad

Posted
Posted

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 :down:

Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6550669
Share on other sites
scotty nm35 Grand Master

scotty nm35

Posted
Posted

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...

post-63525-0-90998900-1348620567_thumb.jpg

Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6550735
Share on other sites
Commsman Veteran

Commsman

Posted
Posted (edited)

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 :P

Edited by Commsman
Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6551781
Share on other sites
scotty nm35 Grand Master

scotty nm35

Posted
Posted

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.

Link to comment
https://www.sau.com.au/forums/topic/410179-afm-m35/#findComment-6551803
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      NC MX5

      By MBS206 · Posted

      My guesstimate, with no real numbers to back it up, is it won't effect it greatly at all.its not a huge change in position, and I can't see the air flow changing from in turbulence that much based on distance, and what's in front of it. Johnny and Brad may have some more numbers to share from experience though.
    • dbm7
      Automatic Power Button Light Flashing

      By dbm7 · Posted

      Which solenoid? Why was it changed? Again, why was this done? ...well, these wear..but ultimately, why was it changed? Did you reset the idle voltage level after fitment? I'm just a tad confused ~ the flash code doesn't allude to these items being faulty, so in my mind the only reason to change these things, would be some drive-ability issue....and if that's the case, what was the problem? Those questions aside, check if the dropping resistor is OK ...should be 11~14 ohms (TCU doesn't throw a flash code for this) ~ also, these TCU designs have full time power (to keep fault code RAM alive), and I think that'll throw a logic code (as opposed to the 10 hardware codes), if that power is missing (or the ram has gone bad in the TCU, which you can check..but that's another story here perhaps).
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Question for people who "know stuff" I am looking at doing the new intake like the one in the picture (the pictured is designed for the OEM TB and intake plenum), this design has the filter behind the front bar, but, the filter sits where the OEM duct heads into the front bar, and the standard aperture when the OEM ducting is removed allows the filter to pulled back out of the front bar into the engine bay for servicing, a simple blanking plate is used to seal the aperture behind the filter This will require a 45° silicone hose from the TB, like the alloy pipe that is currently there, to another 45° silicone hose to get a straight run to the aperture in the front bar Question: how will it effect the tune if I move the MAF about 100-150mm forward, the red is around where my MAF is currently, and the green would be where it would end up Like this This is the hole the filter goes through  Ends up like this LOL..Cheers    
    • Duncan
      R34 Plug Identification

      By Duncan · Posted

      Despite the level up question, actually I do know what that is....it is a pressure sender wire.  So check out around the oil filter for an oil pressure sender, or maybe fuel pressure near the filter or on the engine. Possibly but less likely coolant pressure sensor because they tend to be combined temp/pressure senders if you have one. Could also be brake pressure (in a brake line somewhere pre ABS) but maybe I'm the only one that has that on a skyline.
    • joshuaho96
      Automatic Power Button Light Flashing

      By joshuaho96 · Posted

      Pull codes via the self-diagnosis procedure. As far as I can tell this is just a sign of transmission issues but not a code unto itself.
×
×
  • Create New...