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VW B5 Passat TDIs This is a general discussion about B5 Passat(>98 (2004-2005 in North America)). Non TDI related postings will be moved or removed.

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Old June 13th, 2019, 02:17   #1
philb
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TDI(s): afn passat
Default afn fuel temp sensor

intermittant to ground fault code ,,, 8 pin connector checking wiring no obvious damage , i believe there are 2 wires to temp sensor could do with a schematic of connector , and colours of wires and anything else that might be useful

way forward anyone .
tia
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Old June 13th, 2019, 16:37   #2
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Old June 13th, 2019, 17:26   #3
QuickTD
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AFN, not BHW.
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Old June 13th, 2019, 18:28   #4
afarfalla
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Bummer, I gave it a shot, some body help him. Don't leave him hanging.

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Old June 15th, 2019, 08:14   #5
Uberhare
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I believe AFN is like the ALH and has the fuel temp sensor inside the pump. It is not too bad to change, but you have to pull the top cover off the pump. This is a common problem with ALH, so likely the same for AFN.

You'll need to remove the security triangle bolt, purchase a new sensor and gasket.

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Old June 17th, 2019, 00:49   #6
philb
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many thanks , sorted sensor but later in day low compression on 1 cyl = 380 psi on 3 cyl and 160 psi on worse . so without stripping engine how to free the rings up .. anyone with some good suggestions most welcome
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