R34 Gt-T Pod Filter And Intake Temp Sensor

[Akshunhiro]

Hey all, apologies for starting a new thread but couldn't find any info on my question (most relate to MFD).

I recently replaced the pod filter on my 34 with an Apexi power intake and noticed that the previous owner fitted the intake temp sensor to the Blitz filter bracket bolting to the MAF.

Car runs fine with it unplugged and doesn't bring up the CEL but was wondering whether I should plug it back in and sit it loosely in the bay or just leave it unplugged.

I have no way of mounting it to the new filter and I'd prefer to go back to stock airbox and snorkel with panel filter but people still want way too much for them...

This is the setup with the Blitz filter. Apexi filter is now fitted and included a bracket to mount to the body so is a little more cop friendly.

Also, correct me if I'm wrong about it being an intake temp sensor.

While I'm here, can anyone tell me why the heck there's a vacuum line looping through the power steering pump?

[89CAL]

Silly to have an intake temp sensor there. Air will heat up and cool down (through intercooler) before it gets to the engine

Not sure why someone would have put one there

[Akshunhiro]

It's part of the stock airbox on the R34. It's factory.

[533 RYC]

It's not silly Cal, it's more of an ambient air temp sensor. It provides a baseline ambient temp for the ECU in relation to ignition timing & knock reference. Doesn't matter how good your intercooler is, the cooled charge air temp will heat up alittle between the intercooler & cylinder. Mostly the air closest to the piping/manifold, not so much the air right in the centre of your flow. Depends on your porting.......

The Vac line on the P/steer pump is a boost/load reference for variable steering.

[Akshunhiro]

Thanks Gavin.

Would it be okay unplugged or should I plug it back in and leave it loose in the engine bay?

I found some more info on the pressure switch, was a little concerned as it didn't have a return to the airbox. Should I plumb it in?

[89CAL]

A proper intake temp sensor is best fitted on the intake manifold (like a gtr)

However I didnt know this was a stock sensor so makes sense I guess if it normally went in the side of the airbox. I thought someone had added this later (moving it from the intake manifold) hence my statement.

Sorry for the confusion

Edited January 2, 2014 by 89CAL

[Black4DR]

I always just tuck them close to the pod filter. They don't have to be in the intake. So long as its sensing the same air around the filter should be fine. Unless someone can tell me the filter changes the air temp lol.

[533 RYC]

I found some more info on the pressure switch, was a little concerned as it didn't have a return to the airbox. Should I plumb it in?

The return from the pressure switch runs behind the timing belt, just below the sprockets & up to the intake plenum. If you need pics I can post some up later.

[Akshunhiro]

That's the feed isn't it? Feeding from the plenum to the pressure switch and returns to the airbox.

[533 RYC]

That's the return. I have a larger pressure feed on the pipe between the throttle body & intercooler (stock pipe). Is yours still stock?

[enka]

this was on mine too previously hooked up to mfd, lol japanese people, they even just use water temp sensor instead the real intake temp sensor, but it worked, now ditched it.

as far as i know this is not factory, intake temp factory only exists in gtr and it should plugged to intercooler pipe or similar, so it's just japan!