Jump to content
SAU Community

Hydraulic Rb25Det...

dayofthedead
 Share

Recommended Posts

The Dan Grand Master

The Dan

Posted
Posted

this is wat happened, when i got my big turbo and injectors all put in and tuned, my tuner didnt put the pintal caps on the end of the injecors, which then causeed the o rings to push out into the fuel rail, which then i had back fire issues and dropping a cylinder, number 6....i took it back then he said its running fine and said i had fuel pressure problems, i then got a new FRP, put that in and then he said, number 6 injector has been modifiied and drilled out which causing it to run like shit (PE 850cc brand new)..then one weekend took out the rail to have a look at injecors and noticed all o rinngs were pushed out and no pintal caps....i then put stock ones on to get it back to the shop the next day, then drrove up and on way up number 2 injector was leaking, towed it to shop, tryed starting it then it hydrauliced it self.....then he spends 3 days on it, dryed out all cylinders, new oil, new filter, new plugs, new pintal caps, re tuned it for a safe tune, im now running 0.90 bar boost, before i was running 1.40 bar....and everytime i boost it its back fires, platters, shudders the car and flamage.....my tuner reacons "myself" f*ked the llife span on my motor and he doesnt want to boost it due to bores being a lil glazeed.........

thats my probllem, sorry for the loong story but had to give it out, so u understannd....

thanks guys...

wow

Umm....there are no words

Dobz Experienced

Dobz

Posted
Posted (edited)

Retracted comment due to following post.

It is true though because a workshops buisness can be affected by this sort of bad reporting, even if it may not have been their fault because we weren't getting the full story.

Edited by Dobz
The Dan Grand Master

The Dan

Posted
Posted

Once again everyone jumping on the band wagon. Were any of you there to see what had happened? Able to comment from personal experience. Considering he has named the shop I suggest everyone takes a second thought about posting about his abilities without knowing first hand what happened.

To start with: Why does your 'brand new' PE injectors come without pintle caps?

The story smells a little bit. There is more to it than what you are saying

The Dan Grand Master

The Dan

Posted
Posted

Fair enough we don't know the story. But installing injectors isn't difficult for qualified mechanics but by the looks of it this guy couldn't even do that right and then suggest the bores are glazed is also stupid

Yeah that's true but we are also relying on the OP's description of the event. Sometimes people do not relay 100% of the information. Maybe the tuner described the possible side effects of a leaking injector?

The customer installed the injectors himself? Or maybe has done other things which has brought about the initial problem? Like supplying his own injectors that didn't come with pintle caps

EdGTR Enthusiast

EdGTR

Posted
Posted

Ok so there was more to the story but that doesnt change the hard facts. Is he not boosting it up any further because it has the standard injectors back in it?

Have you got to the bottom of why the injector stayed open?

If you are not sure about a tuner or mechanic go and talk to another one but just remember that they are humans and that they see and do things differently to each other. There are many ways to do alot of things, but go with the facts and start at the beginning check over everything and if it all looks ok then put it behind you. Have you checked to see if the glazing of the bore is only on the fuel affected cylinder or accross the six equally. if its the same on all six then it wasnt the fuel and it was like that before.

  • 4 weeks later...

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

    • Kinkstaah
      RB25DE NEO with Haltech ECU

      By Kinkstaah · Posted

      @Haggerty this is your red flag. In MAP based ECU's the Manifold pressure X RPM calculation is how the engine knows it is actually...running/going through ANY load. You are confusing the term 'base map' with your base VE/Fuel table. When most people say 'base map' they mean the stock entire tune shipped with the ECU, hopefully aimed at a specific car/setup to use as a base for beginning to tune your specific car. Haltech has a lot of documentation (or at least they used to, I expect it to be better now). Read it voraciously.
    • GTSBoy
      RB25DE NEO with Haltech ECU

      By GTSBoy · Posted

      I saw you mention this earlier and it raised a red flag, but I couldn't believe it was real. Yes, the vacuum signal should vary. It is the one and only load signal from the engine to the ECU, and it MUST vary. It is either not connected or is badly f**ked up in some way.
    • Murray_Calavera
      RB25DE NEO with Haltech ECU

      By Murray_Calavera · Posted

      @Haggerty you still haven't answered my question.  Many things you are saying do not make sense for someone who can tune, yet I would not expect someone who cannot tune to be playing with the things in the ECU that you are.  This process would be a lot quicker to figure out if we can remove user error from the equation. 
    • MBS206
      R32 GTS (RB20DE) Injectors Replacement

      By MBS206 · Posted

      If as it's stalling, the fuel pressure rises, it's saying there's less vacuum in the intake manifold. This is pretty typical of an engine that is slowing down.   While typically is agree it sounds fuel related, it really sounds fuel/air mixture related. Since the whole system has been refurbished, including injectors, pump, etc, it's likely we've altered how well the system is delivering fuel. If someone before you has messed with the IACV because it needed fiddling with as the fuel system was dieing out, we need to readjust it back. Getting things back to factory spec everywhere, is what's going to help the entire system. So if it idles at 400rpm with no IACV, that needs raising. Getting factory air flow back to normal will help us get everything back in spec, and likely help chase down any other issues. Back on IACV, if the base idle (no IACV plugged in) is too far out, it's a lot harder for the ECU to control idle. The IACV duty cycle causes non linear variations in reality. When I've tuned the idle valves in the past, you need to keep it in a relatively narrow window on aftermarket ecus to stop them doing wild dances. It also means if your base idle is too low, the valve needs to open too much, and then the smallest % change ends up being a huge variation.
    • Haggerty
      RB25DE NEO with Haltech ECU

      By Haggerty · Posted

      I guess one thing that might be wrong is the manifold pressure.  It is a constant -5.9 and never moves even under 100% throttle and load.  I would expect it to atleast go to 0 correct?  It's doing this with the OEM MAP as well as the ECU vacuum sensor. When trying to tune the base map under load the crosshairs only climb vertically with RPM, but always in the -5.9 column.
×
×
  • Create New...