Should We Change Temp Sender On Engine Swap ?

[VFRegal]

Hi all,

We swapped an R32 RB26 into a R34 GT-Four (RB25DE NEO) and are having some temperature issues.

It currently has the stock instrument cluster and the coolant temp sender on the engine is a yellow sender.

Should this be swapped to a blue sensor ?

It seems to run well (ecu sender correct ?) But the gauge reads quite high.

Thanks,

[Ben C34]

Why not swap the sensor? Its not hard to do.

[StevenCJR31]

^^^ this, use the instruments original temp sensor and use the ecus original temp sensor . . .this may fix the high temp reading you are getting on the dash (incorrect signals could be coming from both)

[VFRegal]

Cheers guys.

The question is do i need to change the sensor, in other words, are they different ?

The ECU is the R32 ecu so it runs fine. I read on there that the RB25 Neo has the same sensor as the RB26 so that's why I am asking.

The old motor was sold off long ago unfortunately so we can't check without getting a new sensor.

Thanks.

[Ben C34]

Ahh, that makes sense that you don't just swap it then! What about checking how hot your engine is actually running? Maybe it is actually running hot. If you have a consult cable use that, or an infra red heat gun, or aftermarket gauge.

[WMDC35]

the yellow, blue & red sensors are the same except the plug