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Problem Code P0447 Cant find problem

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

mosherman1
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Problem Code P0447 Cant find problem

Post by mosherman1 » Tue Dec 06, 2016 6:49 am

We are selling the old 1998 S70 and just as I am taking the check the CEL come on. My Code reader says P0447. I erased all code and withing 10 sec it comes back. The SAS sytem is all good with new air pump and functioning valve. No bad wires. Ive checked the evap valve on the fan shroud teted good. Wire to ECU good. I cant find a system diagram to find any other purge valve. Can anyone hlp with Code P0447?

Thanks

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abscate
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abscate

Re: Problem Code P0447 Cant find problem

Post by abscate » Tue Dec 06, 2016 6:55 am

That's probably a wiring fault in the purge of canister shutoff valve

The system is covered pretty well in the VRD
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mosherman1
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Re: Problem Code P0447 Cant find problem

Post by mosherman1 » Tue Dec 06, 2016 7:00 am

What is a VRD?

I have voltage to the canister purge valve. (fan shroud) Is there another purge valve in the system? Maybe near the fuel tank?

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erikv11
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Re: Problem Code P0447 Cant find problem

Post by erikv11 » Tue Dec 06, 2016 8:47 am

Yeah, we should have a policy about using acronyms without defining them (;) - pardon me mosherman1, that's an inside joke).

VRD is Volvo Repair Database http://www.matthewsvolvosite.com/volvo- ... abase-home.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

mosherman1
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Re: Problem Code P0447 Cant find problem

Post by mosherman1 » Tue Dec 06, 2016 6:58 pm

ok All valves are working Purge, Shut off and SAS. Here's the problem They all be the same voltage of just under 7V. I think they need 12v and ideas? All Wires are good.

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abscate
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Re: Problem Code P0447 Cant find problem

Post by abscate » Wed Dec 07, 2016 6:20 pm

You need to fault trace and find the voltage loss. The supply should be at battery voltage
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