Jump to content
SAU Community

Recommended Posts

ok guys i've got an xf throttle body on my plenum with the auto rb30 TPS (yes i've done the metal plate mod) when the throttle is wide open it isn't getting 100% reading on my hand controller. when its closed it reads around 2-4 when wide open only goes to around 31. i've even tried adjusting the TPS by undoing the screws & moving it in different positions but still wont get a good reading... kinda seem like the D shaft from the throttle body that spins the TPS to give the reading isn't spinning round enough...

could i have the wrong xf throttle body?

cheers

Link to comment
https://www.sau.com.au/forums/topic/373687-xf-throttle-body-tps-question/
Share on other sites

If you have a greddy mani, a vh45 90mm tb bolts straight on.

You can bolt the stock tps to it aswell.

J.

i was just looking at some of them. i dont have a greddy mani tho. does the fx throttle body have the same 4 bolt pattern on each of them???

Ok I've put my mates stock rb30 throttle body & tps on to check if it's works correctly but when i set the tps to 0 then open the throttle fully it's only reading up to 50% on my wolf hand controller. Is there any way to set 0 when it shut then 100 when it's WOT full throttle??? Because I can't think of anything else to do...

Cheers

Ok I've put my mates stock rb30 throttle body & tps on to check if it's works correctly but when i set the tps to 0 then open the throttle fully it's only reading up to 50% on my wolf hand controller. Is there any way to set 0 when it shut then 100 when it's WOT full throttle??? Because I can't think of anything else to do...

Cheers

Yeah as guilt just posted you need to calibrate the tps travel and voltage to the ecu's end points.

So pretty much my tuner hasn't set it right from the start when I got it tuned yeah?

I called them last week & they said I need to get the tps working correctly before they can tune it, but it's never worked right after I got it tuned anyways...

Can they defiantly calibrate it via the ecu? In other words set 0 then 100 yeah???

Cheers guys

Yes you can set the limits in the ECU, eg flatten the accelerator and see what volts it gives, this is your max volts, then close the throttle and see what the volts are, this is your min voltage eg your limits. Should be very easy to do this.

Edited by Rolls

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

    • There are black hose clamps as well if you care. Plazmaman for example sells some: https://plazmaman.com/product/black-hose-clamps-premium-quality-stainless-breeze/
    • After using a protractor for an actually accurate assessment of what is required,  and by NOT using my uncalibrated eyeball I worked out I need a 25° silicone bend from the TB ro the MAF, but, my choice was either a 30° or a 23° (23° is a weird spec), so I grabbed the 23° one from Raceworks I also grabbed 1mtr of 3" straight from Just Jap, I needed 350mm, but they only had 300mm, or 1mtr lengths....meh Also ordered a 1/2" hose bulkhead fitting from fleabay, this has a smoothish mushroom looking head (they are designed for below the water line of boats) that will fit inside the bend, the hose bit and threaded bit looks to long, but nothing that a hacksaw cannot fix if required, the hose will then just get jamed on the threaded bit up to the retaining nut Fingers crossed and the unsightly amount of hose clamps will be reduced down to 4 once all the parts arrive 
    • Oil change does not trigger code 21. Code 21 is for coilpacks primary side connection. You can try to clear the code with a battery disconnect, hold down the brake pedal to drain capacitors through the brake lights with the ignition on for 10-15 seconds before you reconnect the battery. I have seen R35 coil conversion permanently cause this code with no ill effects so it might be the resistance it wants to see isn't quite right on one or more coilpacks. Could be inside the ECU, could be the harness, could be a coil. You can test it all if you want or just ignore until the car actually starts misfiring.
    • I forgot you have a Nistune ECU. Use Nistune to do all the tests I mentioned instead of faffing with 30+ year old electrical connectors. You can read MAF volts off that too, there are reference values in the service manual to tell you roughly what it should be in different conditions.
×
×
  • Create New...