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Suissvw
Samba Member
Joined: October 18, 2015
Posts: 7
Location: Switzerland
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 Posted: Thu Nov 23, 2017 5:32 pm Post subject: Mass air flow sensor in Calgary |
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Hy guys
We are currently traveling in our 84 westy and having a big problem with sudden loss of power. It's getting to much fuel and doesn't really shifts down anymore. We think it might be the mass air flow sensor which is being glitchy and does not mix the fuel/air right. Getting one is pretty hard and as we are just rushing through, time is a issue.
Does somebody living in the calgary area has a spare one or knows where to get one?
already a big thanks for any kind a help |
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 9798
Location: Mt Lemmon, AZ
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| Posted: Thu Nov 23, 2017 5:39 pm Post subject: Re: Mass air flow sensor in Calgary |
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| Suissvw wrote: |
| ...in our 84 westy and having a big problem with sudden loss of power. It's getting to much fuel... |
Could be several things (incl the AFM) but that description really makes me think of the common problem of the coax on the green O2 wire shorting to the center conductor.
If even one strand of the coax comes in contact with the (female) connector the ECU will misread the O2 signal and run very rich - resulting in loss of power and mileage in the single digits.
It only takes a moment to check with an ohmmeter and is simple to fix (or eliminate as the problem).
Several threads out there describing the problem and showing pics of same. |
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syncro2x
Samba Member
Joined: April 16, 2009
Posts: 110
Location: Calgary
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| Posted: Thu Nov 23, 2017 6:48 pm Post subject: Re: Mass air flow sensor in Calgary |
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If you decide to get an expert to handle your problem. Paul at Tony's Auto Service is the best vanagon mechanic in the city, in my opinion. 403-266-3397
He has been fixing my vanagons since 1993. Usually can get you in pretty quick. |
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dplumtree
Samba Member
Joined: October 23, 2010
Posts: 68
Location: Alberta,Canada
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| Posted: Fri Nov 24, 2017 10:32 am Post subject: Re: Mass air flow sensor in Calgary |
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^^^^x2
_________________
1990 Vanagon full camper |
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Suissvw
Samba Member
Joined: October 18, 2015
Posts: 7
Location: Switzerland
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| Posted: Fri Nov 24, 2017 10:44 am Post subject: Re: Mass air flow sensor in Calgary |
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thank you guys for the fast response.
We tested a couple things, everything seemed to work solid. Disconnected the o2 sensor and then suddenly the black smoke coming out of the exhaust stopped. Now trying to drive a bit around without the sensor and look how it works.
we hope it's just that and we are lucky |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 9798
Location: Mt Lemmon, AZ
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| Posted: Fri Nov 24, 2017 11:14 am Post subject: Re: Mass air flow sensor in Calgary |
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Sounds like you are on to something.
One other clue that may point to that coax shorting (or other O2 issues) is that the van will start and run okay for a minute or so, then the crappy running begins anew.
The ECU ignores the O2 sensor immediately after start-up, waiting for it to have a chance to warm up. |
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9.5isCanadian
Samba Member
Joined: September 16, 2017
Posts: 465
Location: In your blind spot.
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| Posted: Fri Nov 24, 2017 11:31 am Post subject: Re: Mass air flow sensor in Calgary |
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Concept 1 is in Calgary and have just about everything you might need.
http://store.concept1.ca/
9 1/2
_________________
9 1/2 - missing a few pieces.
1987 Getaway Hightop
1980 Sunroof Vanagon
2018 BMW R Nine T
2012 Golf tdi |
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IdahoDoug
Samba Member
Joined: June 12, 2010
Posts: 10248
Location: N. Idaho
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| Posted: Fri Nov 24, 2017 9:56 pm Post subject: Re: Mass air flow sensor in Calgary |
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SuissVW,
Where are you headed next? Perhaps if you let people here know, someone in your destination can help. There are a lot of Vanagon people here who volunteer their time to help travelers.
Doug
_________________
1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader |
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