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Hi guys i have an R34 GTT,

The car was left at my shop for about 6 months untouched, i noticed someone has knocked off the Turbo pressure sensor its mounted on the firewall of the engine bay.

Anyway,.. i started the car up today and drove it around, i noticed that there was alot of black smoke, just wondering if the turbo pressure sensor contributes to the black smoke thats coming out of the exhaust, and not to mention alot of backfires and flames aswell when the throttle is released.

I googled some pics on google to give a rough idea where it is.

Any help would be great, not sure whether its required or is there any way around it?

Cheers :)

post-59775-0-24896200-1307964915_thumb.jpg

post-59775-0-39887400-1307964939_thumb.jpg

Has the vacuum hose supplying the boost sensor been blocked off or is it leaking?

i don't have it blocked off, so i presume its leaking. will have a good look tomorrow and see where everything goes. I need to go look for the Sensor and the little hose with the filter looking thing. Any ideas as where they plugged up to? Im pretty sure they are T pieced into the BOV vacuum line but not 100% sure.

iirc ecu goes into limp/knock maps if its unplugged so you need another one

I will look around and see if i cant get my hands on one of these sensors and try it out.

Cheers buddy!

On another note, that's a very tidy engine bay. Did you remove the wiper fluid tank to fit the pipe between intercooler and intake?

Hi buddy, thats not my engine bay, i just did a google search and found this picture that was quite big and clear. :)

  • 4 years later...

hi, did you find out if the sensor was causing the issue ?

I am having a same problem and car is very rich.

I think it is due to the sensor . People say it is map sensor so I am thinking I could get another map sensor and put it there but no gurantee it will work !

No, needs to be the same resistance or it will throw a code. There are plenty of these sensors at the wreckers, many Nissan's use the same sensor including the early C34 and later M35 Stagea.

Worst case buy a new one, it's still available from Nissan.

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