Jump to content
SAU Community

Nissan Data Scan Help

YCOPY

By YCOPY,
in Engines & Forced Induction

 Share

Recommended Posts

YCOPY Enthusiast

YCOPY

Posted
Posted

Hey all,

I need some advice /assistance...

I have been having an issue lately that when i plant my foot on the accelerator the car hesitates, it kind of thinks about going for a split second then takes off. i can ease the pedal down and the car goes fine.

Its very intermittent, i have cleaned the AFM,New plugs gapped at 0.8,clean the aac valve, throttle body, Injectors serviced last week.

I’m using data scan to check what’s going on but im getting strange readings..

Cars timing set to 15BTDC (tps,aac disconnected) checked this with timing light.

The data scan reads zero timing...and if i hit base idle adjustment its then forced to 15degres and the car is revving at 1500+rpm and if i check the timing marks with the light they are 30degres+

Im thinking maybe a fault with the cas,fuel pump or fuel pressure..

Anyone got any ideas??

Car -

R33gtst

Fmic

Full 3" Zorst

Splifire coils

Std Motor / Turbo

7lbs boost

Chipped / non chipped STD ECU (tested on both)

Thanks,

Scott

Link to comment
https://www.sau.com.au/forums/topic/215579-nissan-data-scan-help/
Share on other sites
YCOPY Enthusiast

YCOPY

Posted
  • Author
Posted
Sounds like tps or idle soleniod, its not going into the idle map, and the ecu is retarding the timing to try to make it idle.

Looking at the Throttle measurment through data scan gives me 0.18 on idel..im assuming thats volts?

Is this the correct value?

should i test using a multi meter?

YCOPY Enthusiast

YCOPY

Posted
  • Author
Posted (edited)
Sounds like tps or idle soleniod, its not going into the idle map, and the ecu is retarding the timing to try to make it idle.

Ok..Buy this man a beer :)

TPS voltage was 0.2v instead or 0.4v @idle

Idle Soleniod seems to be faulty (sprayed it with some freeze spray) and it seems to all work fine till it got warm again. time to replace me thinks...

Thanks,

Scotty

Edited by chippagti

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

    • Shizu
      Returning after a long time!

      By Shizu · Posted

      I havent bought a manual cover for the dash yet and no cluster change, won't bother me too much, I just need to get that auto box gone, manual in! I miss my manual. 🤪. We started last weekend and managed to get the box out. Planning to start putting it in this weekend and then order a single piece tail. We were super careful to take time and not damage anything. It's my first time working under the car.  With my S15 mainly worked in the bay. This time, it was a headache because of three or four bolts only. They simply didnt want to leave thei homr and the one securing the tailshaft, another above the GB, and the one securing the lipstick was a shit. Mates mate, Davo caught fire 🤣, nearly opened his chest up with a grinder 🤦🏽‍♂️ and both mates nearly had a plate from the box land and slit their head open. Fun times. We all survived. Not the easiest working with limited access on jackstands. As I'm sure we can agree these are the memories which make us love our car. For all three of us, was an awesome weekend and Sunday 3.30am before tools down was a fantastic effort. I need to upload pics, but looks like it needs to be via Url now. We used to be able to just upload pics back in the day. It's been that long! 🤪 Im currently spraying rustoleum under body, not because it's rusted. It's super clean, but just so it's protected for the next 10 years. There was a few surface rust spots. Which pretty much wiped off with a 3M scourer.  Really impressed with how well the previous owner maintained it. Bank account went down so quick! Service, then GB - managed to get a spanking new 34 genuine box from Nissan. All the rest of the conversion parts from Kudos.  Went with a Nismo short shifter. New pedals and Exedy Clutch and FW. Ordered the Prp Rear Main Retainer kit which should arrive Friday and my first engine mod part just like I did with my S15 will be the Tomei Expreme Turbo Outlet. Already on order. It'll likely sleep next to me on a pillow during the coming months. 🥰 Last build was on my JET200GT profile and on SAU and Hardtuned I had documented the build. Planning to try to do that again. Brands feel scarce now. Wish we still had ARC and Apexi parts readily available. Exhaust - need some advice on this. I had an Apexi exhaust on the S15 and loved the tone. My mate had a HKS HP Silent on his 33 and suggested I go with that to avoid drone. I can't remember hearing an RB25DET running that so will likely need to wait for a meet or something to hear it.  Not after big power, just enjoy building it, and drivability with minimal negative attention.
    • Milkmun
      Hello fellow enthusiasts

      By Milkmun · Posted

      Have a chat with Ben at Moore Performance or Jesse at JS Performance.
    • DatsunBanana
      Rear subframe stay bracket bolt removal issues

      By DatsunBanana · Posted

      Thanks both. All good advice. Reminds me of drilling through stone wall for drainage pipe 😬 I'll let you know how I get on if I still have use of my hands afterwards 😅
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Finally got shipping number for the intake and throttle body, shipped by UPS, so "should" be in my hands sometime next week, fingers fracking crossed
    • GTSBoy
      [HOW-TO] Winter Steam-Clean & Odour Removal in 30 min

      By GTSBoy · Posted

      I'm so far behind in the jobs I have to do at both work and home (including car) that I have become immortal. There's simply no way that I can die now.
×
×
  • Create New...