Keep getting the P0443 code which is leaving me unable to renew my tag. So far, I’ve replaced the following:
1. Purge valve (twice)
2. Fuel shutoff valve (twice)
3. Hose from the purge valve that “y’s” out to the intake manifold and engine intake hose
4. J-pipe
Any other ideas?
P0443 but I've replaced everything - 2000 S70 AWD
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AustinAbney
- Posts: 4
- Joined: 28 April 2019
- Year and Model: 2000 S70 awd
- Location: Raleigh, NC
P0443 but I've replaced everything - 2000 S70 AWD
Last edited by matthew1 on 28 Apr 2019, 17:45, edited 3 times in total.
Reason: fixed title
Reason: fixed title
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misha
- Posts: 5379
- Joined: 7 December 2008
- Year and Model: '97 850 2.5 20v
- Location: Serbia
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You are on the wrong path:
https://www.google.com/amp/s/repairpal. ... it-low.amp
https://www.google.com/amp/s/repairpal. ... it-low.amp
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
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AustinAbney
- Posts: 4
- Joined: 28 April 2019
- Year and Model: 2000 S70 awd
- Location: Raleigh, NC
My bad. I was multitasking when I made this post. I'll adjust the content and title.
I have a code P0443, not P0043. Doh!
Now, any ideas anyone?
I have a code P0443, not P0043. Doh!
Now, any ideas anyone?
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RickHaleParker
- Posts: 7129
- Joined: 25 May 2015
- Year and Model: See Signature below.
- Location: Kansas
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You got a open, short or a power supply failure in the loom to the Purge Valve.
1. Check/clean the connector to the Purge Valve.
2. Make sure the Purge Valve is getting power.
3. Ohm out the loom for shorts and opens.
1. Check/clean the connector to the Purge Valve.
2. Make sure the Purge Valve is getting power.
3. Ohm out the loom for shorts and opens.
Last edited by RickHaleParker on 28 Apr 2019, 17:41, edited 1 time in total.
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1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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AustinAbney
- Posts: 4
- Joined: 28 April 2019
- Year and Model: 2000 S70 awd
- Location: Raleigh, NC
I'll get looking. Any chance the B+ cable from the battery could have anything to do with this?
I know it's late to the party. But I had the same deal changed out all the culprits only to realize it was a blown 20amp fuse. Now that's a DOH! moment! 
Well, 3 miles down the road and it's back (P0443). So now I'm going to see where the short is occurring. Start with the CVVT that I changed out, reverse the wiring perhaps. That is when this all started. Fingers crossed.
Nope wasn't that!
Couldn't find any shorts. But when I swapped the wires on the CVVT , ran like crap. so they were correct. And when I swapped them back the fuse blew. So i then decided to put the original CVVT back on and low and behold runs with no fuse blown out. OK is the new Solenoid bad. Anyone know the resistance for one of these things? I get around 4 ohms. I'll haft to search around and see if I can find it. Can't return it cause I ordered it last year damn it.
Well, 3 miles down the road and it's back (P0443). So now I'm going to see where the short is occurring. Start with the CVVT that I changed out, reverse the wiring perhaps. That is when this all started. Fingers crossed.
Nope wasn't that!
Couldn't find any shorts. But when I swapped the wires on the CVVT , ran like crap. so they were correct. And when I swapped them back the fuse blew. So i then decided to put the original CVVT back on and low and behold runs with no fuse blown out. OK is the new Solenoid bad. Anyone know the resistance for one of these things? I get around 4 ohms. I'll haft to search around and see if I can find it. Can't return it cause I ordered it last year damn it.
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