This ones odd. My check engine light comes on at exactly the same spot now matter how many kilometres I’ve driven in between crossing this spot. When I say spot, the light is tripped at exactly the same spot within a meter. It gIves the low turbo boost code. The spot is on a bridge that crosses over a railway that is electric with the over head power lines. The car doesn’t drive like it has low boost. I have never heard of environmental causes for a check engine light, could this happen. My Freelander is a 2010 SE TD4.

Spooky...

How strange.

Electro-magnetic fields mess with electronics..............ghosts too

Ferret wrote:

This ones odd. My check engine light comes on at exactly the same spot now matter how many kilometres I’ve driven in between crossing this spot. When I say spot, the light is tripped at exactly the same spot within a meter. It gIves the low turbo boost code. The spot is on a bridge that crosses over a railway that is electric with the over head power lines. The car doesn’t drive like it has low boost. I have never heard of environmental causes for a check engine light, could this happen. My Freelander is a 2010 SE TD4.

You need to search for Radiated Immunity.

Fair warning you will likely wish that you never asked why once you start searching.


Let us know what you find out


Take care

Paul

Thanks Paul,
Aaahhh! Yeh, Radiated Immunity is certainly a rabbit hole. Going on that theory, it might be the turbo boost sensor being affected by some sort of radiated interference. I guess it’s either going to be a process of illumination or just avoid going over said bridge.

jules wrote:

Ferret wrote:

This ones odd. My check engine light comes on at exactly the same spot now matter how many kilometres I’ve driven in between crossing this spot. When I say spot, the light is tripped at exactly the same spot within a meter. It gIves the low turbo boost code. The spot is on a bridge that crosses over a railway that is electric with the over head power lines. The car doesn’t drive like it has low boost. I have never heard of environmental causes for a check engine light, could this happen. My Freelander is a 2010 SE TD4.

Do you get a shiver down your spine at the same time ?

do you know anyone else with a Freelander that could drive over and see if it happens the them? Common sense isn't very common.
_______________________________
2007 Land Rover Freelander2 I6 hse Auto

Don’t know any other Freelander owners here. But will check with Land Rover specialists here in Perth if they have had any similar things latley.

Stuartc & Pejo are both somewhere in Perth. Might be worth giving them a shout. (Now Sold). 2008 Freelander 2 (Nazca Sand) SE TD4 Auto. Statutory write off & on WOVR for hail damage but still road legal.
171037Km as of 09/05/22
Superchips Bluefin Flash
Nanocom Evo II (also sold)

The exact location is where the Roe Hwy crosses over the Kwinana Fwy. For anybody wanting to give it a go.

Faraday cage is the most simple solution; it's a ghost "buster"!

Motion is correct to think about the Faraday cage.

Is your front under engine skid plate fitted?

If the fault can be reproduced down to a meter as you indicated it would be interest to do the following

1. Remove the skid plate, does this increase succeptibility?

2. Slow the speed that you enter the location does this affect the susceptibility?

3. If you are really brave you could turn off your Freel2 and restart at the place that causes the interference (this won’t be possible unless the bridge has a breakdown lane to pull into)


You could also upgrade to a shielded co axel cable for the signal for the sensor

Let us know what you find

Thanks

Paul

If it is from external electromagnetic radiation, you need to ensure all units have good, corrosion free, main and signal earths, and all signal lines are correctly terminated.

Although unusual, radiation problems to unintentional aerials are not unknown, and heavy electrical machinery is quite often the source. Maybe it is the fluctuations/spikes of current on railway supply cables, but if your FL2's wiring is properly connected, I would have thought it should be able to cope. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 79k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)