Jump to content
SAU Community

Engine Issue

Harinder singh
 Share

Recommended Posts

Harinder singh Rookie

Harinder singh

Posted
Posted

Hi SAU family, having issues with my R34GTT which is slightly modified and tuned to e85.

so scenario is, I’m driving the car to work (30km oneway) and then coming back in the arvo. Car starts and runs fine in the morning and on the way back home (in the arvo). I stop the car when i gets home and after 10-15 mins, it wont start. Battery is fine, fuel pump seems to be working. All i hear is engine clicks but wont start. 
Last time, i disconnected the battery terminals and re connected them. Check fuses. Didnt start at that time but started after an hour (so I say when its cool down). Mechanic cant find the issue as its running now and nothing coming up in the diagnose.

any advice,opinion or anyone gone through similar issue.

 

thanks 🙏🏻

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/
Share on other sites
Harinder singh Rookie

Harinder singh

Posted
  • Author
Posted
10 minutes ago, GTSBoy said:

Injectors?

Note, there is no way that I would run E85 on stock injectors. They are too small.

 injectors were upgraded (1000cc), stock turbo high flowed, return flow infercooler and ecu nistuned before tuned

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003783
Share on other sites
Harinder singh Rookie

Harinder singh

Posted
  • Author
Posted
2 minutes ago, Murray_Calavera said:

Who tuned it? Have you spoken to them about the hot start issue yet?

Yeah, they all cant say anything for sure as everything is working fine . Said unable to find an issue untill it stops again. Could mist likely be CAS wiring or IAS valve issue but again not 100%

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003785
Share on other sites
Duncan Grand Master

Duncan

Posted
Posted

Basically your tuner needs to drive it for the 30 min (or whatever) to create the same conditions then check the ECU settings and sensors at that time. They may not be excited to because that takes them 30 min rather than just opening the bonnet and seeing the problem straight away....

Hot start is generally not as tricky as cold start, but there would be a table for fuel enrichment vs coolant temp as a starting point

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003786
Share on other sites
Harinder singh Rookie

Harinder singh

Posted
  • Author
Posted
4 minutes ago, Duncan said:

Basically your tuner needs to drive it for the 30 min (or whatever) to create the same conditions then check the ECU settings and sensors at that time. They may not be excited to because that takes them 30 min rather than just opening the bonnet and seeing the problem straight away....

Hot start is generally not as tricky as cold start, but there would be a table for fuel enrichment vs coolant temp as a starting point

Yeah thats the next step now, either they wil or i will take out for a drive to work and go straight their after work and see is we get the same issues 🤞 

thought i try my luck here too, never know someone else might have had the same issue but thanks for the reply 

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003787
Share on other sites
Murray_Calavera Mentor

Murray_Calavera

Posted
Posted
18 minutes ago, Harinder singh said:

thought i try my luck here too, never know someone else might have had the same issue but thanks for the reply 

Pretty safe to say almost everyone that has tuned their own car has experienced this issue. The difference being that we have our laptop in the car and when it happens, it's literally 10 seconds of tuning to sort it. 

Would you be happy to plug in your laptop and sort this yourself? It is a very simple process and there is no risk of harming your engine (if you are worried about that). 

  • Thanks 1
Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003788
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

Resizing injectors in Nistune can be done a couple of ways, and there are a couple of ways that you can make a mess of it. The tuner needs to be really aware of the effects of whichever approach he uses (either K, or TIM). They are both easy enough to "get the injector size right" to run the engine. But little details like old start enrichment and hot start are affected differently, depending on which boxes you check.

  • Thanks 1
Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003789
Share on other sites
Harinder singh Rookie

Harinder singh

Posted
  • Author
Posted
4 minutes ago, Murray_Calavera said:

Pretty safe to say almost everyone that has tuned their own car has experienced this issue. The difference being that we have our laptop in the car and when it happens, it's literally 10 seconds of tuning to sort it. 

Would you be happy to plug in your laptop and sort this yourself? It is a very simple process and there is no risk of harming your engine (if you are worried about that). 

Yeah. M taking it to work next and then straight to my mechanic and see if it happens. Else i will check it mysels as it will stop when i come back home..

Link to comment
https://www.sau.com.au/forums/topic/486480-engine-issue/#findComment-8003790
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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • CF.Panda
      R34 25GT Engine Light 21

      By CF.Panda · Posted

      I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Butters
      UniClutch

      By Butters · Posted

      Well they got my money but they are not getting my gearbox ! 
    • GTSBoy
      ECU sees many times the speed than speedo does (R34 swap)

      By GTSBoy · Posted

      It's needed for rolling idle up, and I think it is a decider on VCT also.
    • Kinkstaah
      ECU sees many times the speed than speedo does (R34 swap)

      By Kinkstaah · Posted

      I mean, not really. Link ECU's can absolutely still have errors from the ECU thinking it's getting a sensor it's not expecting. I would imagine the speed at the ECU level in Nistune does absolutely nothing anyway? I assume the ECU does not do any fancy TC stuff with regards to front+rear wheel speed or anything of that like anyway. Someone who uses Nistune may be more fluent in it. 
×
×
  • Create New...