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VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old November 14th, 2017, 13:17   #1
Bobs2293
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Join Date: Nov 2017
Location: Wiltshire
TDI(s): Mk5 Jetta
Default Fuel Temp Sensor

Hi Guys

(1.9TDI PD engine)

Hopefully you can help!

Recently had my check engine light come on with the code P0183 fuel temp sensor. I have changed the sensor and reset the light but the fault light comes back.

Have now tested the old sensor with a multimeter and it appears to work with the resistance changing during a temperature input.

Have checked other sensors on the engine with the ignition on,they are all getting a 5V supply.

However my fuel temp sensor is only getting a 2.5V supply but it is showing a good earth. So the wires not broken.

Any ideas on a next step. I'm stuck for ideas.

Should it actually be a 5V supply?
ECU fault?
Is there two fuel temp sensors?

Man many thanks in advance!!
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Old November 14th, 2017, 13:58   #2
dandywriter
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Join Date: Jul 2007
Location: Ottawa (Kanata), Canada, eh?
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I searched the A5 forum for you. Found this thread:
http://forums.tdiclub.com/showthread...el+temp+sensor
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2006 Jetta TDI 5-sp, Bosal hitch, frostheater, evo skidplate, upgraded rear springs and front spring dist kit (1" lift), GIAC Stg 1 tune, USA Spec iPod adapter, SMF clutch, Coolant Heater Grill Outlet, winter front, LED backup and lic lights, VCDS

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