Jump to content
SAU Community

Egt And O2 Sensor

MyR33GTS-T
 Share

Recommended Posts

MyR33GTS-T Contributor

MyR33GTS-T

Posted
Posted

Hey fellas. Had my car up on the hoist the other day and did my Engine, Gearbox and DIFF oils. Were all black and put good fresh stuff in em.

However while the car was up on the hoist i noticed a sensor coming out of the cat. Which had tape over it.

I believe this sensor is the EGT (exhaust gas temperature sensor). The tape was around the 2 coils of wires in it and i think its rooted..

The car is running heaps rich so i thought i should give replacing this sensor and the O2 sensor at the same time.

Where abouts would i get an EGT sensor from. The O2 isnt a problem.

Could this be the reason. Cos its faulty... and its dumping more fuel in to cool the exhaust down???

Cheers Blokes.

Link to comment
https://www.sau.com.au/forums/topic/273476-egt-and-o2-sensor/
Share on other sites
chiksluvit Experienced

chiksluvit

Posted
Posted

I dont think EGT sensor affects anything, just throws up a light on the dash if it overheats. A lot of people take it off when they installl a metal cat

skylines always run rich when modified unless you have programmable ECU

Hey fellas. Had my car up on the hoist the other day and did my Engine, Gearbox and DIFF oils. Were all black and put good fresh stuff in em.

However while the car was up on the hoist i noticed a sensor coming out of the cat. Which had tape over it.

I believe this sensor is the EGT (exhaust gas temperature sensor). The tape was around the 2 coils of wires in it and i think its rooted..

The car is running heaps rich so i thought i should give replacing this sensor and the O2 sensor at the same time.

Where abouts would i get an EGT sensor from. The O2 isnt a problem.

Could this be the reason. Cos its faulty... and its dumping more fuel in to cool the exhaust down???

Cheers Blokes.

MyR33GTS-T Contributor

MyR33GTS-T

Posted
  • Author
Posted

I have searched but nothhing i seem to do will stop my car from running ritch as shit.

I thought this forum stuff was about helping inexperienced people become experienced. Not just to palm them off onto something else.

And how can u guarentee that the EGT is just for a light on the dash. If its hot.. wouldnt the computer naturally tell the car to put more fuel in to cool it down???

Michael

XxNinjaxX Collaborator

XxNinjaxX

Posted
Posted

EGT is pretty much only for the warning light in the dash, its to tell you that you engine has run ultra lean to the near point of stalling (my mates R32 did it) it sets off a trouble code and the ecu puts the car into a limp mode state. if your car is boosted above stock (say 10psi) like mine im not 100% sure on this so dont quote it but i think the ecu tries to make up for the extra air being forced in by dumping a whole lot of fuel in which results in the rich running. either that or you have a faulty o2 sensor.

hopefully that helps a bit if at all :)

Beer Baron Grand Master

Beer Baron

Posted
Posted

the cat temp sensor DOES NOT send the ECU into limp mode or any other mode. all it does is trigger the dash warning light which is there to tell you to slow down to prevent cat damage and also not to park in long grass as it's a fire hazard. it's in the original owners manual.

the 02 sensor will cure any problems with poor running at cruising situations (small throttle opening, low load conditions) but wont do anything for how the car runs at WOT etc.

are you running an aftermarket exhaust? FMIC? more boost? if so this is why the car runs rich. as the afm sees more air getting into the engine they start to overfuel as a form of engine protection. they just keep throwing more and more fuel in the more boost and power you run. the only way to cure this si return the car to stock (and they are a bit rich stock anyway), or get an aftermarket ecu and have it properly tuned. I know which one I'd do....

MyR33GTS-T Contributor

MyR33GTS-T

Posted
  • Author
Posted

Yeah i shall replace the O2 Sensor and see how i go....

And as for the computer.. Which is the best that is recomended.. As it is almost tax time and i should be getting a good summ.. (touch wood)

So i might have some money to spend.

The car is running about 10psi with a stealth boost T, has a FMIC whis doesnt do anything, reason being.... and the stock thermo fan was replaced with a thermo bolted straight onto the radiator.... no shroud or nething. WHAT A WANG he was when he did it. newho.. All is to be resirected with a new ALOY radiator and dual thermofan setup. Has a Varex exhaust which doesnt work because it is filled with carbon... AND that is alll...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • brillo
      Leak from Tokico BM50 Brake Master Cylinder

      By brillo · Posted

      Yes I can see how that would put you off HFM, especially with the price of good quality brake fluid. From what I understand it as you say the BM50 is the standard BMC for a R32 GTR, I must admit I would like to go far a Genuine Nissan BM57, but lack of cash prevents that at present. With the price being so close between the genuine BM50 and BM57 a BM57 New it seems a better choice as you gain that 1/16 bore size with the BM57, I would be interested in how much difference you feel with the BM57 fitted. I am going to take SteveL's advice in the short term and see how much actually comes out of that proportioning valve vent and save up for the Genuine Nissan part. Thanks for clarifying the HFM failure
    • oHBoy.
      2001 R34DE

      By oHBoy. · Posted

      Thanks mate. I just got the post inspection 1/2 done from state roads when the starter motor packed up, either that or the car alarm system is having trouble.  OEM part number 23300-AA112.
    • oHBoy.
      Starter motor replacment teeth count.

      By oHBoy. · Posted

      Hi, I though I was coming to an end in finding a replacement starter motor for a rb25de neo. I came across a starter motor from Taarks and a message below stating: Direct fit. 11 Tooth count. All below part numbers have been superseded to 11 teeth. Can some body shed some light on going from 8 teeth to 11 teeth apart from 36-month / 25,000 km warranty for passenger vehicles to 12 Month Warranty. Compatible with the following Nissan part numbers: 23300-20P00 23300-20P01 23300-20P05 23300-20P10 23300-20P11 23300-AA111 23300-AA112 23300-AA300 23300-08U10 23300-08U11 23300-08U15  
    • niZmO_Man
      J50 clock date suddenly reset to January 1

      By niZmO_Man · Posted

      Low battery? Maybe check capacity? I know first-hand, on BMWs if your battery drops below 80% capacity, it starts causing strange issues.
    • niZmO_Man
      Wheel Sizes & Offsets For Skylines

      By niZmO_Man · Posted

      8.5 +37 = should fit rear, but I think it'll hit on front. What you want is low 30s/high 20's front, mid 30's rear. That 17" screenshot you posted looks good, I'd run it on my R32 (but that's long dead now). For tyre sizes, my rule of thumb is: 8': 235, 9": 255. But that's just my opinion. Nismo sizes: 18x8.5+35/18x9.5+38 is a good starting point.
×
×
  • Create New...