Jump to content
SAU Community

Sus Air Flow Meter !

BOOZTJUNKEY

By BOOZTJUNKEY,
in General Maintenance

 Share

Recommended Posts

32vspec2gtr Collaborator

32vspec2gtr

Posted
Posted

as above I don't think it's normal for the car to die I thought the revs would just become unstable and go up and sown not just die ???

Any body know?

hey mate, I had an issue with my air flow meters not too long ago. The car would idle rough and sometimes stall but when you accelerate it would simply just die. (leaning out, not a good thing).

The best way is to just flash the codes if it has a standard ecu and it should tell you.

What cars it for?

BOOZTJUNKEY Proficient

BOOZTJUNKEY

Posted
  • Author
Posted

R32 four door

Rb20det wit stock ecu yeah I'll run diagnostic tonight I just will be swapping the car this weekend and want the new owner to know what's wrong before I do

I suspect either the air flow meter or coilpacks I just replaced the cas and retimed the engine and when it gets it seems to feel hesitant under light throttle and has a bad sputter which may be caused buy one of the two things?

BOOZTJUNKEY Proficient

BOOZTJUNKEY

Posted
  • Author
Posted

Ran diagnostic and flashed 55 so nothing sensor related the ecu has picked up on

I'm leaning towards air leaking after the air flow meter ? Would that cause these symptoms I can not really think of anything that would cause this problem apart from that

Shazza24 Proficient

Shazza24

Posted
Posted (edited)

Nah mate I wanna know if it should be stalling the car if I unplug it ?

From what i understand the ecu relies on the signal from the AFM to know how much fuel to chuck in the cylinders(for air/fuel ratios). So in answer to your question i would expect it to stall.

Edited by Shazza24
Birds Grand Master

Birds

Posted
Posted

When I last cleaned out my intake with carby cleaner, pretty sure the following happened:

Disconnecting the AFM but leaving it plugged into the loom made the engine stall after a couple seconds, probably because ECU is aware of the AFM but getting weak to no signal.

Pulling out the loom too though, the ECU is getting no signal at all, therefore reverting to some sort of open loop mode and it should run roughly but not stall.

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

    • The Bogan
      Neil's R33 Gts-t Build

      By The Bogan · Posted

      It was a great, but typical track day, and some VB was ingested at the night time debrief 🤪
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      And so, to round this out, I couldn't be happier to confirm @MBS206 has decided to buy the car. He drove down from sunny QLD with a trailer last week and it is off to its new home today. I'll let Matt confirm on next steps but I understand broadly that the plan is to leave it pretty much as is, and just get some quality wheel time with a nicely balanced car that is pretty much track ready. There are a few a jobs still to be done first but nothing too major and I think its a very smart buy Dinner last night at the Paragon with a round of VBs (mostly) for Neil
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      Well, 50 pages and the end of a chapter for this car. We took it out for a shakedown at Wakie yesterday, and everything went well. There were a couple of niggles: - Oil cooler fitting leak - tightened, cleaned, stopped leaking - Radiator cap overflow fitting was leaking....Mark called it, the overflow fitting was threaded in and not tight....tightened, tested and held pressure - Small oil leak at the rear of the block, probably the turbo oil feed - too hot to get at it comfortably but probably just needs to be nipped up - leak at the driver's side rear brake line where it meets the hardline. Fitting wasn't loose, so Matt backed it off and back on, no further leaks - there's also a leak somewhere on the top of the fuel tank, maybe that cross over fuel line - that was has been left to fix when its on a hoist Otherwise than those niggles the car went great, turned great and stopped great so it was a very successful day out. I'm always really nervous when a car first hits the track after a long break, especially with a brand new engine as well but it was great. VID-20251011-WA0007.mp4  Big thanks to @The Bogan who dropped by and helped out, @MBS206 and my nephew Lachlan the apprentice.  Neil's wife Mel also surprised the hell out of all of us by dropping by; she's up in Tamworth these days but was travelling to Melbourne so had plausible deniability for turning up at the garage, it was great to see her but also obviously a bit sad all round.
    • perry_r33
      Skyline R33 Sedan Tail Lights S2 - (2 SETS Available) Silver & Grey

      By perry_r33 · Posted

      Skyline R33 Series 2 sedan tail lights in excellent condition. These are becoming harder to find, especially in this state.    BOTH SETS ARE IN FANTASTIC CONDITION (REFER TO PHOTOS)    ✅ No broken covers or cracks ✅ Lenses are in flawless condition ✅ All rear mounting lugs intact ✅ Comes complete as pictured ✅ Perfect for restoration, replacement, or upgrade   These lights are ready to go, no surprises just quality OEM parts.   These are definitely one of the better sets we have seen in a while. With minimal wear and tear they will come as you see. Bear in mind they are not brand new they are almost 30 years old now. To find them in this condition isn’t easy they can only be obtained on the second hand market.   Australia Wide Postage Available At Buyers Expense. Silver Set:$850 Grey Set:$850 PM Me for purchase or any other questions  IMG_2166.dng IMG_2165.dng IMG_2172.dng IMG_2173.dng IMG_2174.dng IMG_2179.dng IMG_2180.dng IMG_2260.dng IMG_2258.dng IMG_2259.dng IMG_2261.dng IMG_2266.dng IMG_2273.dng IMG_2274.dng IMG_2276.dng
    • GTSBoy
      First time Skyline owner

      By GTSBoy · Posted

      Unsolicited advice? Keep the engine as close to stock as you can. Nothing wrong with adding some boost and making a little more power, but given where you are, you really don't want to try to make it into a monster. I can't imagine the roads are up to it, and the lack of locla support when it grenades will be a ball ache. FWIW, If there is a dyno around that you can access, then brand new injectors are a good idea, which will lead you to (at least) putting a Nistune in it, which will allow you to put an R35 AFM on it, all of which will make it possible to make it much much nicer to drive and live with.
×
×
  • Create New...