Rb25Det Throttle Position Sensor

[Exodus01]

Hi,

I have done an R32 conversion to a RB25DET and bought a new engine loom for the 25 however it didnt have a plug for the Throttle position sensor.

Does anyone know why and if its required? will it just idle rough without it plugged in or will i have overall issues?

[Exodus01]

anyone? sorry this is the last part of my conversion thats stumped me a little.

[SkudR33]

When I plug the one in my car, idle gets rough and starts hunting... Not sure if anybody else experiences this.

[KiwiRS4T]

If you are asking do you need the TPS the answer is yes you do. If you search you can find the common faults.

[Exodus01]

yeah. i just heard that not all looms have the plug (which the one i bought doesnt) so im quite confused as to why it doesnt if there are problems..

[Mr.H]

Why dont you use your original RB20 loom cut off the plugs and use the RB25 plugs for the Coils....it worked for me.

[Exodus01]

did this initially, wasnt happy with loss of VCT and the hassles of tracking back a lot of wires which were dodgy on the rb20 loom. So now, replaced the ECU, ignitor box, injector loom, coil loom and over all engine loom. only bit missing from this setup is that one plug....

[Mr.H]

The VCT can still be made to work.....like my 32.

Found this from an earlier convo on SAU: http://bc240.com/ind...hp?showtopic=12

[Exodus01]

from discussions with people i had you have issues with the vct running off the rb20 like it only working up high if you manually wire it however i cannot comment on it as im no car electrician or expert of any kind. and the other issue of fixing the rb20 wiring that was already f***ed is the reason of swapping it all..

The hard work of ripping it all out and putting in the new one is done. i am stumped by the idea of this one plug which there are no signs of ever existing in the loom.