My 2019 Three Wheeler has had an intermittent EML since I bought it, “P0173 Rear Adaptive Maxed Out.”
The car drives fine, and from what I understand, it is one of many common fault codes that these cars can lovingly throw at you.
Sometimes it disappears for a few dozen miles, other times it stays on for months.
Every year, the technician at Morgan resets and clears the code for me, but it always comes back no matter what.
He has always said not to worry about it, it is common, and to just ignore it – apart from a reset, there isn’t much they can do about it.
Whilst physically seeing the light is annoying, for 3 years now I have put up with it and enjoyed the car thoroughly.
The problem is, I’m starting to get to the point where I feel I want to sell the car and experience something new but selling a car with a check engine light and saying to a possible buyer “oh I promise the car is fine” won’t go down well, and will make the car almost impossible to sell unless I take a bath on the price. I doubt I could PX it, either, at least not for a reasonable valuation.
Obviously, I could have the fault cleared and try to avoid using the car until it’s sold in the hope it doesn’t reappear until it’s the new owners problem (which I suspect is what the previous owner did with me) but I’m not a dishonest seller and don’t feel comfortable doing that.
So, what are my options?
Is there a way I can log into the ECU and clear this code myself? I have got a copy of Pro Tune but it doesn’t really seem to give me any control.
Can I get the sensor that causes this EML “turned off” or increase the thresholds that cause it to go off, to prevent it from happening again?
There must be something that can be done – surely the car can’t be stuck with this forever?
