Jump to content
SAU Community

Wtf Why Does My Car Keep Surging?

jarryd2nd
 Share

Recommended Posts

jarryd2nd Contributor

jarryd2nd

Posted
Posted

hi there guys im a newbie on here and not to sure what is happening with my car as when i go to put the foot down the car starts to surge.

the car has the following mods done to the engine

ENGINE:

Currently makes 273rwkw, tuned by trent at status tuning

HKS GT-RS Turbo Kit @16psi

PowerFC ecu

Hybrid Intercooler kit

Z32 AFM

Bigger injectors, was told Sard 650CC (yellow tops)

Walbro fuel pump

Full Turbo back 3" exhaust

Pod Filter

Splitfire coilpacks

any help is greatly appreciated as im sick of not being able to have full throttle iwith these skyline engines

Link to comment
https://www.sau.com.au/forums/topic/241808-wtf-why-does-my-car-keep-surging/
Share on other sites
jarryd2nd Contributor

jarryd2nd

Posted
  • Author
Posted
check ya airflow metter and tps.... does it surge as soon as ya put ya foot down or when boost comes on..?

thank you so much for the reply mate

what is a tps???

and it surges when the car is on the boost mainly maybe a bit before hand any ideas???

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

    • GTSBoy
      R32 GTST - 600KW+ RB28/CD009 Build

      By GTSBoy · Posted

      Unless things that you want to do include reference to time. Simple Boolean logic is only good for digital inputs or analogues that have been thresholded into digitals. But unless you also have a timer function available (which would more ideally be located inside the program, rather than being forced to implement a timer outside the ECU and bring it in as a seperate digital for every time delay you want to implement), then you can't do some of the things that you might want to do. My PLC ladder logics are obviously littered with program blocks, because that's easier than building it all in ladder gates, but the most frequent of those program blocks is a simple timer, because you actually can't otherwise do that in ladder at all.
    • GTSBoy
      Low oil pressure after WOT

      By GTSBoy · Posted

      Log voltage. I'm suspecting the alternator. Or even maybe a bad earth somewhere. ie, seeing as it is rev dependent, I am thinking it is alternator dependent.
    • Duncan
      Low oil pressure after WOT

      By Duncan · Posted

      Yeah so N1 and any other larger than factory pump are pretty famous for pumping the sump dry...obviously we don't often get to spend 20 or 30 seconds at high rpm/full noise on the road so I'd still be suspicious that is what is happening here.
    • MBS206
      Low oil pressure after WOT

      By MBS206 · Posted

      You are also getting pressure dips on gear shifts. They're just not dipping as far, but they're dipping quite below the amount of oil pressure you should be seeing, for how much RPM drops.   It quite little could be the oil pressure relief valve is starting to stick open a little/is slow to close.
    • MBS206
      Low oil pressure after WOT

      By MBS206 · Posted

      Can you log battery voltage, and TPS, and put all four of those into a single image (even as split graphs)?   The oil pressure drops aren't following RPM as such. I'm intrigued if you may have a ground loop between different sensors. With the engine not running, log your sensors and for example cycle the throttle pedal. See if any sensor values flutter or move about. This won't be a perfect test either as the ECU won't be cycling all of its actuators like it would be while running. What EMTRON do you have? Do you have a link to the wiring guide for that ECU?
×
×
  • Create New...