7 pin AFM for 1978 bus 2.0 F.I.

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khargis
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Location: Boise, ID
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7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Fri Jul 05, 2013 3:59 pm

Hello folks. I am hoping someone has an afm for sale. Colin and I made some adjustments on mine a few weeks ago and it is in poor shape. I am looking for a 7 pin afm. Thanks folks, kris
'slow n' steady'

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Amskeptic
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by Amskeptic » Fri Jul 05, 2013 9:42 pm

khargis wrote:Hello folks. I am hoping someone has an afm for sale. Colin and I made some adjustments on mine a few weeks ago and it is in poor shape. I am looking for a 7 pin afm. Thanks folks, kris
http://www.busdepot.com/410020

http://www.bus-boys.com
022-906-301DX 1978-1979 (0280 200 020) $235.97 PLUS $73.00 Core

http://www.germansupply.com/home/custom ... at=&page=1

Pricey but available. Keep looking and check ebay/Samba classifieds, etc, depending on how much time you have . . .
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

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khargis
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Mon Jul 08, 2013 4:23 pm

Thanks Colin. Have you found any of these companies more reputable?
'slow n' steady'

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khargis
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Mon Jul 08, 2013 4:29 pm

'slow n' steady'

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khargis
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Mon Jul 08, 2013 4:42 pm

One more question. The serial number on my current AFM is 0280200018, do I need to find that exact number? or will any AFM for a 1978 bus work, such as this, REMANUFACTURED - Bosch 0280200006 Mass Air Flow Meter MAF AFM Sensor? Thanks again! kh
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SlowLane
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by SlowLane » Mon Jul 08, 2013 8:33 pm

khargis wrote:One more question. The serial number on my current AFM is 0280200018, do I need to find that exact number?
According to ratwell's fuel injection swap page, your model number ending in "018" would be the AFM for a '76/'77 bus. Take a browse. There's lots of good information at his site. It's possible that you have an early-year '78 that still used the older AFM.

Note that both of the AFMs offered by German Supply and Bus Depot are units remanufacured by Fuel Injection Corporation (here in Livermore, BTW). The Bus Depot part number 410020 happens to be the same as the FI Corp. part number.

The direct replacement for your 018 AFM would be the FI Corp 410018.

Interestingly, FI Corp seems to have dropped the 410020 from their product line, so if you're sure that's the one you need, better grab it from Bus Depot while you can.

Also interestingly, Bus Depot seems to be able to offer the FI Corp AFMs for less than FI Corp sells them for. Go figure.
'81 Canadian Westfalia (2.0L, manual), now Californiated

"They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance."
- Terry Pratchett

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khargis
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Tue Jul 09, 2013 2:01 pm

Thanks slow lane, appreciate the feedback and links. Kh
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khargis
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by khargis » Sun Jul 14, 2013 3:01 pm

Hey slow lane, after reading on ratwells about the afm's, my 018 and 020 are compatible. So I guess I have some options. Anyway, thanks again. K
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SlowLane
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by SlowLane » Sun Jul 14, 2013 7:26 pm

khargis wrote:Hey slow lane, after reading on ratwells about the afm's, my 018 and 020 are compatible. So I guess I have some options.
I'm not surprised. It's good to have options. I suspect that there are more similarities than differences between the AFMs for different years.
Here's why I think so: I have two FI-Corp rebuilt AFMs. One for my Federal-FI-equipped Vanagon, and another which is for the CA FI system that I eventually plan to adapt onto this vehicle. Both AFMs use the identical model of Bourns potentiometer board inside, suggesting that the only real difference between the two is in how they are set up, spring-and-wiper-wise.

For interest's sake, it would be nice to know what the make and model of boards people have inside their AFMs. It coud open up a whole host of interchange possibilities.

Can we start a catalog? The potentiometer boards in my AFMs have Bourns model number 1 288 310 021. Anyone else?
'81 Canadian Westfalia (2.0L, manual), now Californiated

"They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance."
- Terry Pratchett

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Amskeptic
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by Amskeptic » Sun Jul 14, 2013 11:42 pm

SlowLane wrote:suggesting that the only real difference between the two is in how they are set up, spring-and-wiper-wise.
I have suggested this very thing. Federal emissions laws required sealed components, set up for very specific engines. They do use the same AFMs across a dizzying array of different engines, and they all had to have different part numbers. for plug-n-play compliance with applicable laws. The same is true of many distributors and vacuum advance/retard cans.
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

luftvagon
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Re: 7 pin AFM for 1978 bus 2.0 F.I.

Post by luftvagon » Mon Jul 15, 2013 8:10 am

What I want to know is how and where did he get his hands on "Bourns" resistor boards. They are NLA, and manufacturer no longer produces them.... I wonder what really gets fixed.
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

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