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how to ID a 78 CA model
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mfemenel
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PostPosted: Mon Jun 14, 2021 10:25 am    Post subject: how to ID a 78 CA model Reply with quote

I was poking around and unfortunately for my wallet found what I think is a good deal on a 78 tin top. The owner says that the FI is still in place... which I love as my 79 Westy still has the FI in it and it's running well. I'm wondering though about a difference I see in the gauges on the dash. On the 78 there is a CAT warning light, on my 79 that same slot is taken up by an OXY light. Is that just a terminology difference in the years or would the presence of a CAT warning light indicate it's a CA instead of Federal? Going to take a look at it tomorrow night, just got me wondering.
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busdaddy
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PostPosted: Mon Jun 14, 2021 10:50 am    Post subject: Re: how to ID a 78 CA model Reply with quote

The door post sticker, as well as the one inside the decklid is the final answer.
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mfemenel
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PostPosted: Mon Jun 14, 2021 11:38 am    Post subject: Re: how to ID a 78 CA model Reply with quote

Just looking at Ratwell, is there such a thing as a 78 CA or was it just 79? Chart seems to indicate 79 only.
https://ratwell.com/technical/FISwap.html
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Wildthings
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PostPosted: Mon Jun 14, 2021 11:43 am    Post subject: Re: how to ID a 78 CA model Reply with quote

mfemenel wrote:
Just looking at Ratwell, is there such a thing as a 78 CA or was it just 79? Chart seems to indicate 79 only.
https://ratwell.com/technical/FISwap.html


BusDaddy gave you the correct answer, check and see what is on the vehicle. If you need to pass smog testing, what is stamped on the plates is what is going to count and not what some website says.
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germansupplyscott
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PostPosted: Mon Jun 14, 2021 12:45 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

'78 CA Bus has a catalytic converter, no O2 sensor.

'79 CA Bus has both.

Since the engine lid could hypothetically be changed easily, the unequivocal way to ID a CA model (as Dad says) is the sticker on the lower door pillar that says "CATAYLST".

CA models also have a sticker, referring to the catalyst, on the driver's windshield visor.
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mfemenel
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PostPosted: Mon Jun 14, 2021 12:52 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

Thanks guys. Going to take a look tomorrow night after work. What really concerns me is my wife is being supportive of this additional potential project Smile
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samwise
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PostPosted: Thu Jun 17, 2021 9:01 am    Post subject: Re: how to ID a 78 CA model Reply with quote

germansupplyscott wrote:
'78 CA Bus has a catalytic converter, no O2 sensor.

'79 CA Bus has both.

Since the engine lid could hypothetically be changed easily, the unequivocal way to ID a CA model (as Dad says) is the sticker on the lower door pillar that says "CATAYLST".

CA models also have a sticker, referring to the catalyst, on the driver's windshield visor.


Unless, of course, the bus has been repainted like mine, and there is no driver's door sticker any more...
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BoltonFTW
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PostPosted: Tue Jun 22, 2021 7:59 am    Post subject: Re: how to ID a 78 CA model Reply with quote

Here are some photos related to catalytic from my 78 CA if you need them for your search


Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.

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mfemenel
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PostPosted: Tue Jun 22, 2021 9:12 am    Post subject: Re: how to ID a 78 CA model Reply with quote

BoltonFTW wrote:
Here are some photos related to catalytic from my 78 CA if you need them for your search


Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


Thank you. After I went up and looked at it, it's not a CA. I'm actually picking it up today!
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BoltonFTW
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PostPosted: Tue Jun 22, 2021 12:04 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

mfemenel wrote:


Thank you. After I went up and looked at it, it's not a CA. I'm actually picking it up today!


Congrats!
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1978 Westfalia Campmobile Deluxe 2.0 FI w/hydraulic lifters
1977 Westfalia Weekender Tintop (very first car - SOLD Sad )
1992 VW Corrado VR6 (SOLD)
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vw76westy
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PostPosted: Tue Jun 22, 2021 2:59 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

just for the record


on 77 and 78 modals
there is really no difference between a ca bus and a fed bus

according to carl (R.I.P) the only difference was
part # on ecu


1976 federal buses have no cat
ca buses have a cat


79 ca buses have the 1 yr only ca only fi system that uses oxygen sensor
79 fed buses are the same as 77 and 78
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Alan Brase
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PostPosted: Tue Jun 22, 2021 5:26 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

vw76westy wrote:
just for the record


on 77 and 78 modals
there is really no difference between a ca bus and a fed bus

according to carl (R.I.P) the only difference was
part # on ecu


1976 federal buses have no cat
ca buses have a cat


79 ca buses have the 1 yr only ca only fi system that uses oxygen sensor
79 fed buses are the same as 77 and 78

Perhaps you mean KARL? (German spelling!)
Karl Von Salzen aka aufever. Yes he was a piece of work and a gold panner!
One of the high points of my life to meet Karl and Ronnie (Feitelson) at Jerome Jamboree. I think 2005.
Karl was the LAST word on most of that stuff.
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Projects: 67 sunroof bug, 67 Porsche 912 Targa, 70 Westy
Dec 1955 Single Cab pickup WANT 15" BUS RIMS dated 8/55, thru 12/55
To New owners: 1969 doublecab, 1971 Dormobile
Vanagons:
80 P27 Westy JUL 1979, 3rd oldest known US
83 1.6TD Vanagon, 87 Wolfie Westy daily driver, swap meet home
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vw76westy
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PostPosted: Wed Jun 23, 2021 1:40 pm    Post subject: Re: how to ID a 78 CA model Reply with quote

you are right

i meant Karl
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order your BAY WINDOW T-SHIRT here http://www.thesamba.com/vw/classifieds/detail.php?id=1526918

quote from bay window bus buyers guide........
The Type 4 engine is considered by many to be VW's finest air-cooled motor,
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