Jump to content
SAU Community

Please Help My Rb26

WHITEBEAST

By WHITEBEAST,
in Engines & Forced Induction

 Share

Recommended Posts

WHITEBEAST Collaborator

WHITEBEAST

Posted
Posted

Hi all, I have an issue with my RB26. After it warms up, or after a squirt. Once the cold air circuit closed loop has opened. It started off really intermittient. Now it is getting worse. Shutters/hunts and stalls. Started off happening on the highway where it would be driving fine untill it starts surging/misfiring, feels like ECU cuts ignition and fuel, and it stalls, restart/jump start then it will be fine for a little while. I managed to get consult plugged in, and logged data stated faulty Mass Air Flow Meter code## (mind you this could of been from past unplugging of sensor, from having to clean oil out of sensors with contact cleaner (Co2) was causing simuliar problem earliar to this) have now pulled off most of piping around turbos down to housing, now clean!. I can see a little puddle of really sluggy oil (amount of a 5c piece) in bottom of back turbo housing, was also a small amount in front housing (blowback from running 12 psi now maybe) installing a catch can this time. Front turbo shaft feels ok no oil around it, can't reach back turbo shaft or get any further visual inspection of it, apart from a slight amount of greasy old oil around outside of rear turbo. I am thinking it is either of many of things after been reading a few posts.

Faulty - Mass Air Flow Meter sensor/s (enough, was enough).

Faulty - Air Temperature sensor.

Faulty - O2 sensor

Faulty - CAS.

Faulty - TPS. (allways had odd idling 900-1200 rpm depending the outside temperature)

Faulty - Fuel pump (pressure).

To much oil in the system (intercooler, plenium, AAC valve, air regulator). - not fun to get at on a R32!

Turbo said enough, is enough.

Or maybe even a injector/s or even possibly a ECU giving up. If you can help to my cause it would be much appreciated. icon14.gif

Link to comment
https://www.sau.com.au/forums/topic/253073-please-help-my-rb26/
Share on other sites
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
your airflow meters are catus. cleaning can only do some much. Replace them with Z32s or standard replacements.

It will fix your problem.. It happend to me...

Cheers.

they can be repaired...send them up and ill do them for you. $50ea

zillathirty2 Rookie

zillathirty2

Posted
Posted
Hi all, I have an issue with my RB26. After it warms up, or after a squirt. Once the cold air circuit closed loop has opened. It started off really intermittient. Now it is getting worse. Shutters/hunts and stalls. Started off happening on the highway where it would be driving fine untill it starts surging/misfiring, feels like ECU cuts ignition and fuel, and it stalls, restart/jump start then it will be fine for a little while. I managed to get consult plugged in, and logged data stated faulty Mass Air Flow Meter code## (mind you this could of been from past unplugging of sensor, from having to clean oil out of sensors with contact cleaner (Co2) was causing simuliar problem earliar to this) have now pulled off most of piping around turbos down to housing, now clean!. I can see a little puddle of really sluggy oil (amount of a 5c piece) in bottom of back turbo housing, was also a small amount in front housing (blowback from running 12 psi now maybe) installing a catch can this time. Front turbo shaft feels ok no oil around it, can't reach back turbo shaft or get any further visual inspection of it, apart from a slight amount of greasy old oil around outside of rear turbo. I am thinking it is either of many of things after been reading a few posts.

Faulty - Mass Air Flow Meter sensor/s (enough, was enough).

Faulty - Air Temperature sensor.

Faulty - O2 sensor

Faulty - CAS.

Faulty - TPS. (allways had odd idling 900-1200 rpm depending the outside temperature)

Faulty - Fuel pump (pressure).

To much oil in the system (intercooler, plenium, AAC valve, air regulator). - not fun to get at on a R32!

Turbo said enough, is enough.

Or maybe even a injector/s or even possibly a ECU giving up. If you can help to my cause it would be much appreciated. icon14.gif

having the same truble with mine. its a stocker. i go down the road and hold the same throttle position for 1km and then it starts misfiring. i found a small hose hangin off the fuel rail which didnt help but it wasnt the sole cause. id be reluctant to blame afm's and more lookin at fuel problems especially if your getin voilent jerks.

WHITEBEAST Collaborator

WHITEBEAST

Posted
  • Author
Posted

Hey, Been tinkering a little, getting it on dyno tomorrow, get him to check for any vacum leaks while its there. Had it on the consult again today and it faulted the MAF/s again after reseting ECU. Getting odd readings out of both sensors, points me in direction of airflow meters. Unpluged one of the MAF's and was getting simuliar fault to the ittimitient one while idling, apart from I couldn't drive at speed due to the ECU putting the rev limited down to 2500 rpm. I will post once I have new MAF/s and more info. Thinks im going down right path now, thanks guys.!icon1.gif

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

    • Dose Pipe Sutututu
      R34 GT-T cycling ABS pump

      By Dose Pipe Sutututu · Posted

      Yeah and hence my ghetto way of slamming the brakes, get the ABS to cycle, rebleed seems to be a sensible workaround.
    • TurboTapin
      CD009 RB Conversion

      By TurboTapin · Posted

      Hey! Happy to help. Nothing inherently wrong with the adapter, it's more so with Brett Collins himself. He gave me a lot of incorrect information when I was in contact with him and was extremely rude when I challenged him. He stated I could not use any aftermarket twin plate clutches except for his own, not to use the dush shield, bla bla bla and it was all BS.  Collins stated to cut roughly 14mm's off the housing, I took off 15mm to make room for the dust shield. I would confirm with whatever adapter manufacturer you're using. 
    • GTSBoy
      33 GTR Broken front wheel knuckle

      By GTSBoy · Posted

      There's plenty of OEM steering arms that are bolted on. Not in the same fashion/orientation as that one, to be sure, but still. Examples of what I'm thinking of would use holes like the ones that have the downward facing studs on the GTR uprights (down the bottom end, under the driveshaft opening, near the lower balljoint) and bolt a steering arm on using only 2 bolts that would be somewhat similarly in shear as these you're complainig about. I reckon old Holdens did that, and I've never seen a broken one of those.
    • MBS206
      33 GTR Broken front wheel knuckle

      By MBS206 · Posted

      Let's be honest, most of the people designing parts like the above, aren't engineers. Sometimes they come from disciplines that gives them more qualitative feel for design than quantitive, however, plenty of them have just picked up a license to Fusion and started making things. And that's the honest part about the majority of these guys making parts like that, they don't have huge R&D teams and heaps of time or experience working out the numbers on it. Shit, most smaller teams that do have real engineers still roll with "yeah, it should be okay, and does the job, let's make them and just see"...   The smaller guys like KiwiCNC, aren't the likes of Bosch etc with proper engineering procedures, and oversights, and sign off. As such, it's why they can produce a product to market a lot quicker, but it always comes back to, question it all.   I'm still not a fan of that bolt on piece. Why not just machine it all in one go? With the right design it's possible. The only reason I can see is if they want different heights/length for the tie rod to bolt to. And if they have the cncs themselves,they can easily offer that exact feature, and just machine it all in one go. 
    • Bennym35
      New guy

      By Bennym35 · Posted

      The roof is wrapped
×
×
  • Create New...