Jump to content
SAU Community

Injectors Ticking With Reds On

Munkyb0y

By Munkyb0y,
in Engines & Forced Induction

 Share

Recommended Posts

Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

Hey guys.

Its an R33 S1 rb25det. Stock ecu, with Unichip piggyback that was on the car when i bought it several years ago. I had it tuned for exhaust/fmic/13psi a couple of years ago.

Stock injectors, stock turbo.

Car stalls on me whilst driving sedately. I pull over and try to start it. Cranks, but wont start.

I can hear my injectors were ticking like crazy with ignition 'reds' on. This isnt right!

I unplugged the CAS. Switch ignition on. Injectors still ticking. Try a few other things. Still the same.

Eventually I pull the harness from the piggyback. Switch ignition on, injectors not ticking. I crank it, doesnt start. But that's expected.

I plug the piggyback in again. Ignition on, injectors not ticking, and car starts and runs fine.

So...

Is there a relay somewhere along the injector wiring that could be getting stuck open/closed, and by unplugging the piggyback, it allowed it to reset?

Could this happen if there's a bad earth somewhere in the wiring. Either ecu or injector loom?

Is it more likely that the piggyback is at fault, and i need to tear it out and look at a new ecu setup?

Could it be the stock ecu at fault in this case, and worth replacing instead?

Hopefully someone has had some experience with this problem before, and can point me in the right direction.

Thanks :)

Edited by Munkyb0y
Link to comment
https://www.sau.com.au/forums/topic/353761-injectors-ticking-with-reds-on/
Share on other sites
Supa Steve Enthusiast

Supa Steve

Posted
Posted (edited)

anyone?

instal a relay to control the injector power feed triggered from the ECCS relay feed.

very common problem when running aftermarket injector control if not set-up correctly.

Edited by Supa Steve
Munkyb0y Grand Master

Munkyb0y

Posted
  • Author
Posted

thanks steve, but i understood very little of what you just said :)

keep in mind, this is only the 2nd time it has happened (twice in 7 days), in the many years ive been using this same setup.

and its been running fine since i made this thread *knock on wood*

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

    • V35_Paul
      Rv37 400r questions

      By V35_Paul · Posted

      A locally delivered Infiniti have remote start installed but don't come with the remote start key. You need a new remote start key and they just need it programed. And this is different to making/programing a new key that just starts the car.  
    • Lithium
      Shoota's R33 GT-R RB30/26

      By Lithium · Posted

      Cheers, and cheers for sharing so much of the build and also sharing the glimpse of what turns out to bring a lot of us poor decision makers together haha.  I do recommend learning more about how to manage it, if not considering getting a  formal diagnosis.  The discussion with the psychiatrist I got my diagnosis through was quite eye opening, things I'd not even considered to be ADHD related and hadn't mentioned were things she asked about out of the blue and were common themes with people with my flavour of ADHD.   It's not a label for people who are hyperactive and ill-attentive, there's more to it than that and some of it can be much more challenging or damaging - though there are of course two sides to the thing, and a lot of the stuff we have to go through and work on to live with it make us effectively "better" at other things as well. Aside from the fact that there is some argument I could have a bit of ASD seasoning in there (came up during the diagnosis, and neurodiverse things seem to not stay as a cookie cut) I suspect you need to learn more about ADHD if you are puzzled about how hyperfocus could possibly apply.  I *do* personally use "superpower" with quotes deliberately, but it's 100% an ADHD thing due to the exact reason that lack of focus is also an ADHD thing... Loosely speaking the inattentive side of ADHD isn't the inability to focus, it's the inability to control where the focus goes.  Not being able to sleep because brain is more interested in thinking about a stupid thing I said to a girl I liked 30 years ago, not being able to focus on work because my brain is more keen on putting together the torque management strategy we're going to try out with a drag car next weekend, not being able to focus on a conversation with someone I WANT to listen to and respect because there is a flickering light in my peripheral vision.    If I could just stop work and build the torque management setup right there and then I'd not hear anything else until it was done.  
    • Shoota_77
      Shoota's R33 GT-R RB30/26

      By Shoota_77 · Posted

      Maybe you should do some more reading.  Google positive effects of ADHD and you'll get your answers.  One of my personal downsides of ADHD has been talking before I think.   Maybe you have it too?
    • GTSBoy
      Shoota's R33 GT-R RB30/26

      By GTSBoy · Posted

      Excuse me for butting in....but which part of ADHD can be considered a superpower? I would have though it far more likely that some ASD comorbidity is more likely to be contributing to an ability to hyperfocus on something. ADHD being aimed somewhat in the other direction. My shed looks like your shed. My whiteboard list of unfinished projects has entries going back 15 years. I know what you're talking about - I just struggle to connect ADHD to the results being discussed.
    • Shoota_77
      Shoota's R33 GT-R RB30/26

      By Shoota_77 · Posted

      Thanks for reaching out!  It's a blessing and a curse at the same time.  I'm undiagnosed but it doesn't take a rocket scientist to see it in me... I have more half started projects laying around my house, shed, garden, etc taking up space and money, destroying aesthetics than if I added up all of my mates projects together. But, ADHD gives me the ability to hyper focus on things that no mere mortal could even  comprehend.  A recent pool build is an example of that....  I dont know anyone else that would be dumb enough and focused enough to take on then complete something of that magnitude. I call ADHD a superpower but it can equally be completely destructive if not controlled and focusedon the right places. Addiction is a major concern to ADHD people and thankfully my addictions have been no worse than projects, XBOX, chocolate and being an arsehole! It's often hereditary and my 13 year old son is currently learning how to drive it at the moment. Keep lurking! If i can finally finish this bloody thing at some point it will be a win for all of us ADHD'ers! 🤪
×
×
  • Create New...