Jump to content
SAU Community

Recommended Posts

What went bang?  Find the cause of the fuel smell?

Lucien.

nothing's gone bang (yet). When I'm on boost above 0.5bar or about 50% throttle my turbo screeches like no tomorrow, Nath took a quick look at it last week and confirmed that it was the exhaust manifold gasket as well as the turbo gaskets. I've got some other crap to deal with too unfortunately (car's still running really rich, only getting 300kms per tank).

nothing's gone bang (yet). When I'm on boost above 0.5bar or about 50% throttle my turbo screeches like no tomorrow, Nath took a quick look at it last week and confirmed that it was the exhaust manifold gasket as well as the turbo gaskets. I've got some other crap to deal with too unfortunately (car's still running really rich, only getting 300kms per tank).

My car is exactly the same, except the whistle/screech is more evident at low throttle and once warm (metal expands closing gap) goes away. Already gone through replacing it once: time to do it again shortly :):rant::) (horrible, horrible, horrible job).

PFC on the way too... weeeeeeeeee... hopefully get some decent economy soon!

Lucien.

My car is exactly the same, except the whistle/screech is more evident at low throttle  and once warm (metal expands closing gap) goes away.  Already gone through replacing it once: time to do it again shortly :rant::) :) (horrible, horrible, horrible job).

PFC on the way too... weeeeeeeeee... hopefully get some decent economy soon!

Lucien.

sounds like a similar problem to mine. at about ~7% throttle (looking at the avcr), i get this high pitch whistling sound which really shits me

not sure what it is :)

sounds like a similar problem to mine. at about ~7% throttle (looking at the avcr), i get this high pitch whistling sound which really shits me

not sure what it is :)

Most likely a gasket, probably on the exhaust manifold (they warp over time from expanding/contracting). Usually it means you have to get the flange resurfaced and new gaskets.

Up side is it should be easier with a single turbo setup (rather than the GT-R's nightmare).

LW.

Spotted a blonde chick filling up at the Mobil in a black 33 with the front bar missing... also had a number 6 on the side... musta been to wakefield or something ... had rims onda front but stockies on the back.

I was da one who told your rear tyres were a bit flat...

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • Brooooo Please send ABS control unit schematic Please! R33 gts25t ABS (Its two plug ecu, black and white) wire colors possible? [email protected]
    • Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
×
×
  • Create New...