Exhaust Gas Temp Sensor & N75 issue

[Rocky Rocastle]

Hi guys

I have done a search on this, found some answers to what i was going to ask but the main question is still unresolved.

I had my car scanned for faults earlier today and one thing flagged initially was Exhaust Gas Temp Sensor - Closed Circuit, I take it this means I need a new EGT sensor or is there more to it than that.

Also prior to having my map, I was getting some quite bad surging to the extent it would go to 20psi, it would never hold here just surge, boost was held around 10. This has now been overcome I'm hoping but Will at P-Torque noticed some irratic readings from the N75 just prior to loading the map and he has tweeked something to do with this manally to an extent rectify it but told me to keep an eye on my boost gauge to make sure boost isn't going to high (now boosts to 24/25ish/not actual sure what it holds at yet, haven't thought to look). Wihout seeing logs i know it's hard to say but would you say there could be an issue here more than likely. Oh and is the standard Cupra R n75 the 'F' verson

Any help or advice from someone in the know is appreciated on either subject, thanks in advance

 

[DannyC87]

sounds similar to the problem I had with mine; check the pipe from the n75 to the wastegate; mine was split causing the overboost; leading to excess exhaust temps - worth checking

 

[Rocky Rocastle]

i will have a look now on the way out, cheers for the suggestion

 

[Rocky Rocastle]

well from feeling the said pipe there doesn't appear to be a split, probably best to take it off to see but that will have to be another day. Anymore suggestions or help welcomed.

Anyone actually replaced the EGT sensor, i've read about people but only a few with possible problems but haven't read that anyone has swapped it. I'm concerned i could be potentially putting certain expensive parts at risk not changing it!?

 

[B3LSY]

hello mate i have replaced my EGT sensor,caused the car to run crap but there not cheap

 

[Rocky Rocastle]

hello mate i have replaced my EGT sensor,caused the car to run crap but there not cheap

how much, i read £140ish or am i wrong. Did you replace your own mate?

 

[B3LSY]

yes mate replaced it myself bought the sensor from a cupra r that was being broke,there easyish to change, yeah there around that price got mine for £15 quid as the bloke didnt know what he had lol

 

[Rocky Rocastle]

theres an lcr being broken down on ebay at the min

thanks for that, might be worth a crack replacing this then, i'll wait a week and scan it again and see if the fault comes back.

Just the potential N75 issue now!

 

[B3LSY]

mine has a slight problem of over boosting was gonna change the n75

 

[noodle]

is there just the 1 egt sensor on the LCR?

 

[skahigh]

Yep, it fits in the back of the turbo.

 

[noodle]

have in the last 2 days noticed a slight petrol smell around the turbo area of my car, could this be the egt?

 

[Rocky Rocastle]

PMSL at your reason for editing Noodle

From the little bit i know about the thing i would still say no, i think it only comes into play once you've given the car some real beans and the exhaust starts getting really hot, above 950 degrees i believe is the cut off point for want of a better phrase