Jump to content
SAU Community

Recommended Posts

Hello,

i have an r32 gtr and it came with a profec A boost controler and an SM Intergrate electronic boost guage. and they read different :S

The electronic boost guage reads higher than the digital boost readout on the profec. I had the boost set to 0.8bar on the controler for it to hit 1 bar on the guage. i wanted it on a bar but left it like that to be safe.

After getting the car on the dyno it turns out that the digital readout on the Profec is correct and when 1 bar is selected, 1.2 1.3 bar shows on the electronic boost guage. I was happy because the car was faster.

Today i checked where both units were getting the reading from, the profec was getting the reading from the top of the fuel reg and the the SM Intergrate was getting the reading from somewhere at the back of the engine bay. I changed the plumbing so they both read from the top of the fuel reg but they still dont match.

Im convinced the electronic guage is wrong. Does anyone know how to adjust the SM Intergrate unit. Cant find any english manuals or instructions on the net. I have manuals here but theyre in japanese.

Theres a unit under the bonnet that accepts the vacume line then runs to the powered unit in the cabin. Is is worth poping the top of it to see if i can adjust it.

Help anyone?

Edited by V-Spec

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

    • Which solenoid? Why was it changed? Again, why was this done? ...well, these wear..but ultimately, why was it changed? Did you reset the idle voltage level after fitment? I'm just a tad confused ~ the flash code doesn't allude to these items being faulty, so in my mind the only reason to change these things, would be some drive-ability issue....and if that's the case, what was the problem? Those questions aside, check if the dropping resistor is OK ...should be 11~14 ohms (TCU doesn't throw a flash code for this) ~ also, these TCU designs have full time power (to keep fault code RAM alive), and I think that'll throw a logic code (as opposed to the 10 hardware codes), if that power is missing (or the ram has gone bad in the TCU, which you can check..but that's another story here perhaps).
    • Question for people who "know stuff" I am looking at doing the new intake like the one in the picture (the pictured is designed for the OEM TB and intake plenum), this design has the filter behind the front bar, but, the filter sits where the OEM duct heads into the front bar, and the standard aperture when the OEM ducting is removed allows the filter to pulled back out of the front bar into the engine bay for servicing, a simple blanking plate is used to seal the aperture behind the filter This will require a 45° silicone hose from the TB, like the alloy pipe that is currently there, to another 45° silicone hose to get a straight run to the aperture in the front bar Question: how will it effect the tune if I move the MAF about 100-150mm forward, the red is around where my MAF is currently, and the green would be where it would end up Like this This is the hole the filter goes through  Ends up like this LOL..Cheers    
    • Despite the level up question, actually I do know what that is....it is a pressure sender wire.  So check out around the oil filter for an oil pressure sender, or maybe fuel pressure near the filter or on the engine. Possibly but less likely coolant pressure sensor because they tend to be combined temp/pressure senders if you have one. Could also be brake pressure (in a brake line somewhere pre ABS) but maybe I'm the only one that has that on a skyline.
    • Pull codes via the self-diagnosis procedure. As far as I can tell this is just a sign of transmission issues but not a code unto itself.
    • Hi All, putting the engine back together and everything is perfect except have this plug left over.. any ideas what it is for and where it goes? Is on cold side under the intake plenum *note not a stock plug, as everything has been modified Cheers
×
×
  • Create New...