Anyone suppressed warning lights with phone app during MOT ?

Anyone suppressed warning lights with phone app during MOT ?

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Discussion

rogerharris

Original Poster:

6 posts

64 months

Monday 27th September 2021
quotequote all
On my 2014 polo bluemotion, I have two warning lights both caused by faulty sensors that dont affect safety, performance or emissions and the total bill for fixing these would be new ABS module and EGR valve, almost equal to the cars value.

These are TMPS light on a direct system where there is no ABS fault (and light cannot be reset), and MIL for EGR sensor. Where the sensor does not return values but the EGR still operates fine. Maybe the lack of EGR return values, causes slight difference to emissions, but the vehicle was already one of the lowest emissions in its class anyway. And the vehicle always passes emissions due to extra servicing and my constant use of redex keeping it clean inside.

So its either scrap the car, find a leniant tester or try and suppress the codes. I actually know a leniant tester but I tend to go to the strict ones as they find steering and other problems for me that the leniant ones fail. And also because they are strict they tend to better mechanics, in my experience anyway. Plus I dont want to rely on the whims of a leniant tester, anyway.

I have the bluetooth dongle and the code clearing apps which work quite well. In that if I was in the garage and watching the MOT then everytime they switch of the engine I could search code in the app and clear before they switch it back on, or right at that point. As it seems the polo will allow one on-off cycle with an active code before it shows on the dash. Was also considering cross-wiring the MIL and TPMS LEDs to the glowplug sensor and another advisory light like EPC, with a switch fitted somewhere to toggle them back to original configuration.

Anyway just wondering if anybody has tried the app-bluetooth in mot station, and any ins and outs.. of course no doubt the thread will fill up with PC plod types reporting it.. making a stand about the wider moral rot of such an issue and recommend me to spend nearly £2000 for stuff that makes almost zero difference to it smile And who wont be thinking of the environmental impact of scrapping low impact cars half way through their life over minor, harmless sensor issues.



Edited by rogerharris on Monday 27th September 13:54


Edited by rogerharris on Monday 27th September 14:04