Jump to content
SAU Community

Recommended Posts

ok iv put a stock 25det into a r32 when driveing around works mint revs up does what a 25det does,

but when drifting usen hard revs it misfire cuts power drops revs to 6000rpm

any body know the proplem dosent feel like a coil or afm proplem feels like a fuel cut

i have no speedo hooked up some one told me it could be the proplem going into a over rev fault code

has any one got experience with this its the 2nd 25 to 32 that has done this both with no speedo's fix the last one with a tune

any help will be appreciated

iv still got to hook up a consult port and i brought a greddy intelligent infometer i hope this could help me find the proplem

at the moment my plan of attack is to loop the neutral switch put in a 25 speed senser run the output to the ecu

i dont want to get a tune because motor is getting pulled out in afew weeks to make room for a 250rwkw sr20det

You cannot run the speed sensor direct to the ECU. The speed sensor outputs an AC signal at +/-1V or thereabouts. The speedo head converts that to a 0-5V square wave signal, which is what the ECU is looking for.

The very simple solution, as it always has been, it to fit a bloody speedo.

No. Don't piss about. Just get an R33 speedo out of a wreck, wire it to the box and the ECU, tuck it up under the dash and be happy.

As for Paul, the R34 ECU definitely has a bunch of zero speed protections built in. Looking at the stock manual bin file in Nistune, max RPM with zero speed is 4500. Map TP with zero speed is 96. It is fair to bet that Nissan had similar protections in the R33 ECU too, it's just that we can't go look inside so easily.

I don't think they do have no problems. I think they run into the exact problem you have. If you use a PowerFC or other ECU then no problem.

With respect to cutting pin 53......there may be a difference between having no signal there at all (not even the circuit connected) and having it connected but not pulsing. The ECU may be able to tell the difference. I don't know with R33 ECUs particularly, because they are useless in all regards I've never been in a car that has one!

If you want to use a cable drive speedo with R33 box in R32 you're going to need to use the Navara drive mod to make it work. I did it to mine, it's not hard, although the speedo cable ends up with a nasty short radius curve in it down near the box/chassis rail afterwards.

Edited by GTSBoy

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


  • Similar Content

  • Latest Posts

    • So, if the headlights' cutoff behaviour (angles, heights, etc) are not as per 6.2.6.1.1 without automatic levelling, then you have to have to have automatic** levelling. Also, if the headlight does not have the required markings, then neither automatic nor manual adjusters are going to be acceptable. That's because the base headlight itself does not meet the minimum requirement (which is the marking). ** with the option of manual levelling, if the headlight otherwise meets the same requirements as for the automatic case AND can be set to the "base" alignment at the headlight itself. So that's an additional requirement for the manual case. So, provided that the marking is on the headlight and there is a local manual adjustment back to "base" on the headlight, then yes, you could argue that they are code compliant. But if you are missing any single one of these things, then they are not. And unlike certain other standards that I work with, there does not seem to be scope to prepare a "fitness for purpose" report. Well, I guess there actually is. You might engage an automotive engineer to write a report stating that the lights meet the performance requirements of the standard even if they are missing, for example, the markings.  
    • Vertical orientation   6.2.6.1.1. The initial downward inclination of the cut off of the dipped-beam to be set in the unladen vehicle state with one person in the driver's seat shall be specified within an accuracy of 0.1 per cent by the manufacturer and indicated in a clearly legible and indelible manner on each vehicle close to either headlamp or the manufacturer's plate by the symbol shown in Annex 7.   The value of this indicated downward inclination shall be defined in accordance with paragraph 6.2.6.1.2.   6.2.6.1.2. Depending on the mounting height in metres (h) of the lower edge of the apparent surface in the direction of the reference axis of the dipped beam headlamp, measured on the unladen vehicles, the vertical inclination of the cut off of the dipped- beam shall, under all the static conditions of Annex 5, remain between the following limits and the initial aiming shall have the following values:   h < 0.8   Limits: between 0.5 per cent and 2.5 per cent   Initial aiming: between 1.0 per cent and 1.5 per cent   0.8 < h < 1.0   Limits: between 0.5 per cent and 2.5 per cent   Initial aiming: between 1.0 per cent and 1.5 per cent   Or, at the discretion of the manufacturer,   Limits: between 1.0 per cent and 3.0 per cent   Initial aiming: between 1.5 per cent and 2.0 per cent   The application for the vehicle type approval shall, in this case, contain information as to which of the two alternatives is to be used.   h > 1.0   Limits: between 1.0 per cent and 3.0 per cent   Initial aiming: between 1.5 per cent and 2.0 per cent   The above limits and the initial aiming values are summarized in the diagram below.   For category N3G (off-road) vehicles where the headlamps exceed a height of 1,200 mm, the limits for the vertical inclination of the cut-off shall be between: -1.5 per cent and -3.5 per cent.   The initial aim shall be set between: -2 per cent and -2.5 per cent.
×
×
  • Create New...