R34 GTR no intake temp. sensor?

[oski]

So I've got a 2001 r34 GTR (series 2) non v-spec, I'm well aware that they come with no intake temp. sensor or exhaust temp. sensor fitted to the car. However I have read that many people have just fitted those sensors to their non v-specs and got them to work on the MFD. Here comes my problem:

There is no connector to plug into the intake temp. sensor? Can anyone confirm whether they got rid of the connector on the series 2 models? I thought I just couldn't find it but while I was installing my new NISMO intercooler (which came with a new sensor) there was nowhere for it to plug in to. The connector for the EGT is just tied up out of the way and is easy to find but I could not see anything for the intake temp, even with the intercooler off. 

It's so hard to find information on this topic as it seems everyone has a series 1 GTR

[baicai]

On series 1 cars, intake temp plug is part of the loom that also contains the horn and canister connector, it's normally tucked under the radiator support. Have a look under there, if not there then possibly series 2 loom is different to series 1.

[michaelz]

To add some info to this thread, there is no connector on series 2 non vspec GTRs.

Although the wiring for the exhaust temp sensor and the bung is available to add the exhaust sensor, they've decided to remove the intake side all together.

It is possible to add it though, if anyone can confirm what colour wires are on the factory intake temp sensor circled in red, that will a good start.

The wiring diagram shows where that circuit is connected to the main loom which presumably does have the temp sensor wires.

If anyone is bored and have a multi meter, a pin out of which pins on the connector are for that sensor would be even better.

Edited December 18, 2019 by michaelz

[JuanluGTR]

On 01/09/2019 at 1:12 AM, oski said:

So I've got a 2001 r34 GTR (series 2) non v-spec, I'm well aware that they come with no intake temp. sensor or exhaust temp. sensor fitted to the car. However I have read that many people have just fitted those sensors to their non v-specs and got them to work on the MFD. Here comes my problem:

There is no connector to plug into the intake temp. sensor? Can anyone confirm whether they got rid of the connector on the series 2 models? I thought I just couldn't find it but while I was installing my new NISMO intercooler (which came with a new sensor) there was nowhere for it to plug in to. The connector for the EGT is just tied up out of the way and is easy to find but I could not see anything for the intake temp, even with the intercooler off. 

It's so hard to find information on this topic as it seems everyone has a series 1 GTR

Hello!

Got the same problem as you, wanted to install iat temp sensor reading to my series 2 non vspec BNR34 and havent the plug anywhere 

Did you solved in any way? Anyone got more info regarding this?

Thank you very much

[oski]

On 07/01/2021 at 8:27 AM, JuanluGTR said:

Hello!

Got the same problem as you, wanted to install iat temp sensor reading to my series 2 non vspec BNR34 and havent the plug anywhere 

Did you solved in any way? Anyone got more info regarding this?

Thank you very much

I think us series 2 owners are out of luck  I've heard the plug is only there on some series 1 cars and it was removed from the series 2 cars. I never managed to find the plug on my car

[GTSBoy]

And it is always way too hard to do your own wiring.

[JuanluGTR]

On 24/01/2021 at 5:04 AM, oski said:

I think us series 2 owners are out of luck  I've heard the plug is only there on some series 1 cars and it was removed from the series 2 cars. I never managed to find the plug on my car

Hey! didnt seen you quoted me until now, im sorry!

Bought a Nismo MFD and got an R34 S2 same as you without the iat plug, but i sourced the MFD pinout so you can test the wiring with a multimeter trying to found the wires for the iat and also you can wire it up all the way to the mfd

Attached the MFD pinout

Hope it can be useful, sourced from R34GTR MFD Facebook page https://www.facebook.com/r34mfd

 

[JuanluGTR]

To the OP @oskiand want to give thanks for the help provided from @Purpleline from the Hong Kong Skyline club, aka R34 MFD in Facebook

I want to share the solution i did to the problem of R34 late model iat temp sensor connector for the MFD not being in place, its true

As some of you people know R34 GTR late model standard version does not come with the IAT and EGT sensors for the MFD, however there is the connector to install the EGT sensor on the harness but NOT the same with the IAT sensor, there aren't a connector for the IAT sensor in place to install the sensor, Nissan for some reason removed it from the harness on the late model standard R34 GTR.

Okay so already did some memory, lets try to explain what i found and what i did to solve the issue when i was working on installing an IAT for my MFD on my R34 GTR standard late model:

- First of all i removed the MFD and with a multimeter tried to follow the wire from pin 46 (IAT sensor) on the brown plug of the MFD, started on this because the wire its there so in some place the wire its being cutted or sealed

Firstly i thought that the wires for the IAT sensor will be sealed on the front harness near the radiator with the AC condenser plugs, so i start stripping the whole front harness with no luck, checked all the wires there and none was the pin 46 IAT and there weren't a sealed wire, sorry for the bad pic its a video screenshot but you get the idea

Okay so next step was to remove the cluster to check if the wire cuts on the mfd subharness on the rear of the cluster

Unfortunately with no luck as the wire 46 follow his way through the plug on the rear of the cluster, so next step was to strip the bottom fuse box on the right feet to check there for the wire and BINGO! i found the wire 46 on the big white plugs on the right feet near the gas pedal, the wire 46 does arrive there but cuts his way there doesn't follow his way through the harness to the sensor, i called it "cut point"

Marked in blue you can see the pin where the wire 46 does arrive, checked with the multimeter and there is continuity through the brown mfd plug to this point

As you can see, not the same on the other side of the plug, marked with the green circle you can see there aren't a pin in place and of course either a wire, so here you see, the "cut point" of the signal from pin 46 IAT sensor

What i did is very laborious but simple, took out the front right fender, took out the harness through the hole and stripped the whole harness until the sensor, put a pin in place of the big white plug with a wire attached and join it with the existing wires on the whole harness, very much electrical tape work but if you got some patience its not that hard just time consuming

Again sorry for the pics, there are screenshots from my Instagram, if someone wants to follow me on IG search for @Juanlu_spec on Instagram

With the whole harness already retaped, new wire covers and new clips, it looks like OEM! as how it should look from factory, too bad for Nissan that did that on the standard late model 

The wire with the red colour and white stripe i used is the signal from MFD, the black with yellow stripe just join it with ground, also i used an OEM Nissan female plug that match the male plug on the sensor, and fabricated a support for the plug with the oem clip

Im sorry for my english it could not be perfect as im Spanish, i hope it could be of help for somebody with the same problem for it i thought to write and pic this reply

Cheers! 

[oski]

Wow, awesome find mate! Thank you for the write up

[JuanluGTR]

On 14/08/2022 at 2:11 PM, oski said:

Wow, awesome find mate! Thank you for the write up

You welcome, i tought it can be of help for someone with the same problem