Jump to content
SAU Community

Recommended Posts

i hav a '93 rb26tt thats being a pig!!!!! it stalld on me a week ago then started to

over fuel heaps.... had a mate look at in on monday night and it didnt play up when

he was there (as usual) then yesterday it started to over fuel and run like a pig again.

today it wouldnt hold idle and now it wont crank!!!!!!!!! ive recently changed from a

standard computer thats been chiped by mines to an apexi power fc.... tha power fc

already had a map for this motor (its not a standard rb26) and it seemed to hold idle

a bit more solid than the mines but as i said it wont start now unless its clutched....

any help would be great :)

Edited by rb27tt
Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/
Share on other sites

i hav a '93 rb26tt thats being a pig!!!!! it stalld on me a week ago then started to

over fuel heaps.... had a mate look at in on monday night and it didnt play up when

he was there (as usual) then yesterday it started to over fuel and run like a pig again.

today it wouldnt hold idle and now it wont crank!!!!!!!!! ive recently changed from a

standard computer thats been chiped by mines to an apexi power fc.... tha power fc

already had a map for this motor (its not a standard rb26) and it seemed to hold idle

a bit more solid than the mines but as i said it wont start now unless its clutched....

any help would be great :)

Are you sure its poring in fuel? Have you checked plugs & coils? Injectors can be stuck open from dirty fuel and it has clogged up the injectors. Not cranking? Once again injectors stuck open so there are flooding a few cylinders, this also can be caused by bad plugs (flooded), bad coils or even ignition module. Maybe try a stock ECU? Might be the wrong tune...

Checking them one by one will take you closer to you problem...

Cheers,

Alex.

Edited by 217/r33
Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2295883
Share on other sites

im sure it fueling up... you can see it spitting on the exhaust tip then it evaporates. and when it finally starts

it blows alot of black smoke. the mines computer ran it fine untill last sat when it stalld.

how do i go about checking coils injectors etc? could it be a prob with o2 sensors or the fuel reg?

ive gon efrom owning a datto with carbies to a rb27tt (tomei stroker) im in over my head i think :)

Edited by rb27tt
Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2295904
Share on other sites

im sure it fueling up... you can see it spitting on the exhaust tip then it evaporates. and when it finally starts

it blows alot of black smoke. the mines computer ran it fine untill last sat when it stalld.

how do i go about checking coils injectors etc? could it be a prob with o2 sensors or the fuel reg?

ive gon efrom owning a datto with carbies to a rb27tt (tomei stroker) im in over my head i think >_<

Try putting the old stock mines ECU back in. Defiantly sounds like a fuel/ignition problem. Take the plugs out and have a look at the condition. Faulty coil packs usually come from having cracks in them.

TRY:

*Taping the wire loom that connects all the coils

*Replacing new plugs to NGK iridium gapped to 0.8mm

*Checking coil packs for cracks (If so try to using silicon to fill them in)

*Maybe a new Fuel Filter

A few questions:

*Is it running a fuel regulator?

*Bigger injectors ECT..

*Any other modification you know about?

If your running bigger injectors, bigger AFM's, cams ect you most defiantly need a tune. a full list of mods will help.

It’s hard to explaining everything set by step. Try getting it to a specialist or a tuner to source out the problem.

Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2296328
Share on other sites

TRY:

*Replacing new plugs to NGK iridium gapped to 0.8mm

The last thing you want to do is throw $100 worth of plugs at it when your chasing a gremlin. A $20 set of coppers will be fine.

A simple fouled plug or split/popped off cooler hose can give the problems you describe.

Have you tried a new set of plugs?

But as you mentioned the problem has come and gone I would say its likely to be ignition related.

And as alluded to by Paul, if the power fc wasnt tuned when connected up to your engine, which is modified, then that wont help much either.

Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2296529
Share on other sites

check air flow meters as well.

dude the pfc was tuned for this motor as is, i havnt changed a thing

on the motor so it should still run... i will get a set of plugs and c if that works.

how would u go about checking the intercooler pipes for leaks?

Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2298941
Share on other sites

ok............ i took off the breather hoses on the rocker covers and blanked them off.

i re checked tha gaps in the new spark plugs (oops forgot to gap them), put the mines comp back in after changing it for the pfc again and the car runs!!!!!!!!!! lacking power and still running heaps rich but atleast

now the motor behaves under load....... going to take the pfc and car to a tuner and c whats wrong.

according to the last owner of the car that pfc spent 14hrs getting tuned for this motor set up...

buggerd if i know y it isnt working rite.... :whistling: tha mines computer f**ked out on me originaly

so im afraid to put it down to being the comp

Edited by rb27tt
Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2300863
Share on other sites

  • 2 weeks later...

just thought id update everyone with my gremlin hunting..........

turns out it was the coils!!!!! they where rat sh*t so i got some

splitfires into her and according to the mechanic its all good.

yipeeeeeeee wonder if i will get a power increase from this????? :whistling:

Link to comment
https://www.sau.com.au/forums/topic/124333-help-me/#findComment-2330204
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


  • Similar Content

  • Latest Posts

    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
    • Thanks for that, hadn’t used my brain enough to think about that. 
    • Also playing with fire if they start to flow more air down low than what the stock twins can. It's not even up top you need to worry, it can be at 3000rpm and part throttle and it's getting way more flow than it should.
    • Any G40/1000 or G40/1250 results out there?  
    • You still want a proper tune on the stock ECU though. Stock tune + stock ECU with GT-SS/-9s is probably playing with fire if you're running more than stock airflow/power.
×
×
  • Create New...