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P0183 - Fuel Temperature Sensor fault.

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09PMG

Member Since: 23 Oct 2021
Location: Leicester
Posts: 4

2005 Discovery 3 TDV6 Base 7 Seat Manual Bonatti Grey

P0183 - Fuel Temperature Sensor fault.

Hello,

Recently purchased a Discovery 3, however I get a few error messages which causes the car to not spool the turbo's up.

I've managed to resolve a few, however the one persistent that causes it to go into limp mode is:

- P0183 - Fuel Temperature Sensor A Circuit High Input.

I've read a thread https://www.disco3.co.uk/forum/engine-syst...31950.html which mentions taking the plug apart & getting a better contact. I've had a little fiddle with them but it hasn't resolved the issue.

Taking a multi meter to the plug shows that I'm getting 5v (there or thereabouts), could it just be a defective fuel temperature sensor? Or is there anything else I should check out?

Thanks.

14th Nov 2021 9:58 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4941

2009 Discovery 3 TDV6 Commercial XS Auto Stornoway Grey

If the fuel temperature rises above 85°C, the ECM reduces the amount of fuel to the injectors to allow the fuel to cool, this will cause your loss in power.

5V is the correct baseline voltage and it is monitored by the ECM. If a fault is logged the ECM reduces the fuel pressure to a predetermined default value. If the deviation between fuel pressure and temperature exceeds a "set point" the ECM can further curtail the injector performance or in some cases even shut the engine down and prevent it starting again.

If you can't resolve it at the elec connections then it's a new lp return line, as the sensor is not available separately.

yµ (idµ - eAµ) ψ=mψ

15th Nov 2021 12:50 am

sisu

Member Since: 24 Aug 2021
Location: Freiburg
Posts: 15

2010 Discovery 4 TDV6 Base 7 Seat Auto Santorini Black

I once had the same error. The sensor was leaking and has then pressed fuel into the plug. This triggered the error then. Pull off the plug and see if there is everything okay and especially dry

15th Nov 2021 11:06 am

09PMG

Member Since: 23 Oct 2021
Location: Leicester
Posts: 4

Thank you both!

At least I know I’m on the right path to getting it sorted.

When it comes to the sensor itself, am I mainly focusing on the 2 pin electric connector or is there more to it than that?

15th Nov 2021 11:19 am

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4941

Yes that's it, the actual sensor is in the the return line. yµ (idµ - eAµ) ψ=mψ

15th Nov 2021 2:34 pm

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10595

2005 Discovery 3 TDV6 HSE Auto Rimini Red

maybe of interest

https://www.disco3.co.uk/forum/topic193518.html

dunno if this is the part? maybe a gamble. Could be different fitting or characteristics

https://www.ebay.co.uk/itm/264513906121?ha...Sw9Eldtwp8

15th Nov 2021 7:04 pm

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