Jump to content
SAU Community

Recommended Posts

Hey guys, i just tried to install my safc and i first connected the rpm, ignition power & ground and it worked fine, then i tried the airflow signal and the car was running really rough like it was running on 5cyl. I removed the wires that go to the airflow signal wire and connected the AFM signal wire back normally and the car still has the problem, it runs really rough like a wrx and dies quickly. still runs really rough with my right exhaust shaking badly and spitting what looks like small amounts of fuel out. Anyone happen to know a fix?

PS: Car is a 300zx

Link to comment
https://www.sau.com.au/forums/topic/315323-stuffed-safc-install/
Share on other sites

Hey guys, i just tried to install my safc and i first connected the rpm, ignition power & ground and it worked fine, then i tried the airflow signal and the car was running really rough like it was running on 5cyl. I removed the wires that go to the airflow signal wire and connected the AFM signal wire back normally and the car still has the problem, it runs really rough like a wrx and dies quickly. still runs really rough with my right exhaust shaking badly and spitting what looks like small amounts of fuel out. Anyone happen to know a fix?

PS: Car is a 300zx

Make sure all the settings are right before you start the car, providing you connected everything properly eg. some cars run air flow meters and some map sensors, start with that make sure you set the thing up to air flow meters and go through the settings making sure its all set up correctly for your car. If its a second hand unit make sure you reset it.

Cheers

Make sure all the settings are right before you start the car, providing you connected everything properly eg. some cars run air flow meters and some map sensors, start with that make sure you set the thing up to air flow meters and go through the settings making sure its all set up correctly for your car. If its a second hand unit make sure you reset it.

Cheers

Its setup correctly mate, but the thing is when i removed it the car still acted the same. Only started happening after i cut the AFM signal wire and connected it to the input & output wires of the safc, but with them removed now it still does the same.

BTW, one of these units 149389-apexi-afc-5-button-dsc00233.jpg

Yeh thats an old one I was thinking of the new ones. Sorry mate I cant help I have no idea, the only thing that comes to my mind is an air flow meter issue, try replacing it with a mates one and see if it works then thats always a good starting point. My mates WRX was doing the exact same thing to what you described and it turned out to be AFM maybe its just a coincidence that it happened now, but as I said its a good starting point and take it from there.

was the car running 100% before the SAFC was installed?

Yeah mate, was running like a dream

have you checked that its not a fouled plug?

thats what it sounds like.

if the AFM was dead that car wouldnt run.

i'll have a look at the plugs soon, but i don't think its the case as it happened as soon as i connected the input & output wires of the safc.

Unplug the AFM and let it go into limp, see if there is any difference with/without the AFM now.

Then check AFM resistance with a multimeter, can't remember what it should be for a 33. possibly shorted the AFM some how? Also check what ECU error codes you are getting on the dash/ecu.

I had one of those SAFC once upon a time, they make a great beer coaster. :D

Edited by James_03

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


  • Similar Content

  • Latest Posts

    • Each to their own I guess  Me, I put just as much time into cleaning inside of the cars as I do on the outside As for getting wet, it is really no different than steam cleaning the carpets at home, apart from the cars carpet dries alot faster than the house, again, I only do it in the hotter months and leave the car opened up for a few hours As I only do it yearly, it is just before I do the diff and gearbox service, so I clean the carpets, then it's up on stands, wheels off, service, clean the undercarriage,  grease the bushings and do a nut and bolt check on everything  Disclaimer: I typically had all the time in the world to kill when I was working 🤣, so spending a full day or 2 cleaning, serving and "looking at stuff" was,  easily achievable, and a fun mental therapy day As for time to kill, I retired last Wednesday, so apart from my physical training, my days are filled with lots of random jobs around the house and garden...."Idle hands are the Devils something something" I am also buying a new house sooner rather than later, I'm actually looking at a potential property tomorrow, I'm looking forward to getting a car hoist as I'm starting to get to old to crawl around under a car, I can only imagine all the undercarriage cleaning and looking at stuff when that gets set up
    • Yeah, I'm not interested in wetting the carpets, and I don't care about brown dirt/dust that lives deep in the pile or underneath. It's not like I crawl around on them in my birthday suit or eat dropped food off them (because there is never any open food in my car). The seats are alcantara (cheap Chinese imitation alcantara, to be sure!) with barely 1" of foam pad behind the surface. That's not getting wet either. Any car that I would be happy to get the interior wet, I would not care to put the effort into.
    • We have one that holds 2.8L of water. On floor carpet that hasn't been touched in 2 or 3 years, will take a minimum of 2 fills of the tank to do a bedroom, and that's going AROUND the bed.   In the cruiser, I used an ENTIRE 2.8L tank, just on the front passenger footwell. But it had some fungus growing, and had been full of mud from being used as a 4WD for many years. I can do that floor again, and it will still pull mud out. However, the water now only looks dirty, not pitch black and leaving full sludge in the bottom of the tank it sucks back into. Oh, and, this is about a $1500 unit.
    • This is mine, works a treat for the cars, suction is good, I use the Bissell clean and protect stuff I have found giving it a good spray and light scrub with the soft brush on the head of the nossle for carpet, and a rub with a microfibre for cloth seats and cloth door trims, prior to another quick spray before vacuuming it up works the best @GTSBoy You would surprised on what it gets out of carpet and seats that actually "look" clean, I recommend that you test drive yours when you have a little time to kill, then post pics of the muddy looking water that I believe you will find
    • I think even the "commercial" capacity ones that you would hire from supermarkets etc wouldn't have the capacity to do all that much in one go. I will go through half a dozen tanks of solution and dumps/rinses of the waste tank for one little 2 seat sofa. Or similar for one 6 footish rug. That's the price you pay for something small that only takes up a bit of cupboard space, instead of something that takes up the entire laundry cupboard or half the shed.
×
×
  • Create New...