AFM (air flow meter) MAF (mass air flow sensor) T2 ID

[Tcash]

To link to this post

[SGKent]

[beetleman217]

I have the 0280200018 air flow meter on my 77 bus and it does not work. The engine stumbles upon start and never fires up. I swapped it with a friend's 0280200020 unit (from a 78 bus) and my engine fires right up and purrs like a kitten. Both units look identical and their flap position/clearance is pretty much the same (to the naked eye).

Reading this thread and others, I understand that the 018 is for 76 buses and 020 for 77 and on. But I've also read people claim they're totally interchangeable. So I don't know whether mine is not working because it's faulty or because it's the wrong year.

I'm trying to obtain a 020 but it seems nobody carries it anymore. Busdepot customer service told me I just need to re-calibrate my 018, but they don't know how to do it. Should I try to open it and mess with it? Does anyone have a working 020 they would like to sell?

And if that's not enough, I'm in a dire need of a cold start valve as mine is leaking badly, but it's out of stock everywhere! So if anyone has one, please shout out! (Bosch # 0280170026 , VW # 022906171B )

Please help!!
_________________
If all else fails, stop using all else

1977 Westfalia
1961 Beetle

[Tcash]

What are the number cut out of the picture?
14?
and is it 63
Tcash

[VeeDubb steppin]

Hey guys Xevin ,WCFVW69,and all others involved ,including you Steve thanks for being understanding .Iam a roller , I'm sorta like a Timex ,I'm not gonna get all butt hurt if I take an ass chewin , Heck ,sometimes I even chew back ,but I always TRY to have respect for my fellow Humans .It doesnt appear I'm going anywhere I've fallen in love again ,and the Bus is my latest fling , This obsession of mine may need treatment ,but I'm sure the Doc will say " I'm okay and youre okay ,if the check's okay ".

[wcfvw69]

[VeeDubb steppin]

Steve ,Well No I'm non compliant on some of those points ,I have been doing alot of searching on specifics however . I'm not much of a booksmart kinda guy , I guess I'm kinda like your basic uneducated Lugg, I barely finished High School ,but I'm okay with that ,reading comprehension never was my forte ,but I do the best I can ,problem with me is I'm scatterbrained sometimes .I am currently working on Mercedes 300SD's ,Honda trail 90's , 1970 GTO's Volvo 740 turbo's etc etc etc . But Oh well ,and thanks for the oil strainer heads up ... and TCASH here ya go ...

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[SGKent]

I am a strong believer in helping people, mentoring people. Just as others helped me along the way. Being a good mentor also requires having a student willing to do his/her homework. One just can't ask for answers when it is test time. I am sure you didn't teach your 3 children to only ask for the answers to the test questions. You wouldn't expect a surgeon to make a post on a forum, "Ok I am cutting this guy open, what happens if I cut this artery? and if I do can I sew it back together later?"

For example did you:

Read the owner's manual? - it is available for free on this forum
Read the factory service manual? It can be found online for free or go to Amazon
Read the FI manual? It is available for free on this forum
Done a search for the items you are trying to lean about? Search is free

Then ask educated questions.

BTW - if you haven't been forewarned, watch out for the 9 ft lb oil strainer bolt. Go tighter and it will in an instant ruin the engine.
_________________
Canned Water - the new California approved parts cleaner (except in a drought in which case rub it with sand).

George Carlin:
"Most people don't know what they're doing, and a lot of them are really good at it."

Skills@EuroCarsPlus:
"never time to do it right but always time to do it twice"

[VeeDubb steppin]

absolutely ,try to get it by tonight ...The airbox mount really baffled me ,I didnt want to hack it but my Sis is not a stickler for original,she wants a cruiser .I didnt see any way around this since it has the swapped in 77/78? GEO23341 eng w/7 pin afm . As I said I will order a new harness and mount the aotomatic 022 906 021 T ecu and try to move on . We had it running /driving w/the 6 pin afm but ,I want to make it right .It also had the first generation Auto trans with missing linkage ,boy that was another nightmare ,I got it squared away .This thing kinda ate my lunch ,but Im steadily learning ...

[Tcash]

Hey VeeDubb steppin
Could you please post a picture of the M-Plate located behind the left (drivers side us) seat?
M-Plate Location

Thank you
Tcash

[Xevin]

VeeDubb,
No need to defend yourself. Just roll with it. When you read enough post and get a feel for these guys responses you'll understand. Steve can dish out some tough love but he's Johnny on the spot to help out whoever needs help. He and Wildthings go at it all the time but those two have so much knowledge and history they understand and have earned each other's respect. I've seen to many new guys get bent out of shape and burn bridges going toe to toe with guys that have 40 years of knowledge. What happens is the other gurus on The Samba see defensive responses and back away. And good on you apologizing, that goes along way. Good luck with the project.
_________________
Keep on Busin'

[VeeDubb steppin]

Thats not my nature, I raised 3 kids and love to pass what little knowledge I posses on ,especially when I see the student is hungry for learning ,and has a little spunkiness and determination .I can see I have a Looong way to go on learning about VW stuff ,but I trudge on because now I kinda dig this funky Bus ,and it's not even mine .Thanks again and I hope we can get on better footing as far as correspondence goes ,because I DO respect your knowledge ,take care and have a good day

[SGKent]

[VeeDubb steppin]

Steve , nothing could be further from the truth , ask anyone that knows me ,my sense of humor is King Size ,I tried to convey that in my half joking posts . Look I' dont want to get in a pissin contest with you , and I do appreciate the time you spent ,but I think you need to ease up on people that dpnt have your knowledge ,.I can handle the sarcasm ...hell I'm an ex New Yorker ,just dont expect me to lie down and take it without a little volley of my own .I know I can be a P.I.A ,and I know I ask maybe too many " Why Daddy " questions sometimes ,and I know I dont posess the smarts about Vdubbs that you do ! and most of all I know my spelling ,sentence structure and grammar SUCK !And trust me I spent the better part of MANY days researching ,how do you think I came upon all these sources ? So thats unfair to imply I'm a slacker .I don't mind your bark ,just be okay when others wanna bark at the moon with you , I'm a happy fun loving gear head looking for solutions .This is my first VeeDubb project and alot of it is new to me .So please when people ask " Why Daddy " have a lil more patience thats all .Again thank you for taking the initial time and thank you for letting me explain myself ,now its on to at least a half dozen other vehicles that I am new at working on ,and a few more forums ...

[SGKent]

[VeeDubb steppin]

TCash thanks for the help , I can see that you are more tolerant with the " Why Daddy " questions , I do understand it is hard to follow " 5 paragraph ' questions " I was just trying to explain in detail . I am having a hard time as well with reading some of the replies with all the chopped up quotes etc , but I wont resort to 1 upmanship ad hominem comments , just appreciate those who posses patience alot more . I didnt see anywhere in my first two original posts , the " 5 paragraph post " or the " to the kill " numerical post where I said I removed the board , ...I did NOT remove the board , just the 4 screws holding the plastic male terminal housing that accepts the AFM wire harness connection , I did this to clean the terminals , the so called potentiometer ? was not touched , therefore I believe youre first reply of " NO " is correct .Also thank you for adressing my other questions w/out a condescending tone , you were very kind and helpful , as were others , Contrary to what some may percieve of my Stupid questions , I have researched the heck out of this ... and also ," My Own Hand " didnt offend me , as I didnt BUY the bus , one could easily see that , If they comprehended my " 5 paragraph " post . I am doing this for my Sister , for free, .As I said before , this is an odd setup , and I have learned alot , even asking stupid questions , perhaps now some Others may become even more Illuminated than they already percieve , and pass it on , thats what good teachers do , bad teachers ...well they bark alot I guess ? thanks to ALL BG

[SGKent]

[Tcash]

[SGKent]

TCash said No, he is incorrect on this one.

First hand I can tell you that moving the board can and does trash some units. It trashed one of mine.

There are multiple voltage and current outputs between that board and the wiper (acts as a variable ground spot. If the board is moved it changes the voltages and current at each take out that goes to a different pin on the ECU. The ECU is analyzing differences between those pins then adding fuel as needed. Change the spot the wiper rides and one changes the amount of fuel that is added. Sometimes it doesn't affect much, other times like mine it trashes the unit. That is why I said perhaps permanently.
_________________
Canned Water - the new California approved parts cleaner (except in a drought in which case rub it with sand).

George Carlin:
"Most people don't know what they're doing, and a lot of them are really good at it."

Skills@EuroCarsPlus:
"never time to do it right but always time to do it twice"

[Xevin]

The S hose. Is one longer then the other? If so the short one could be from a Vanagon. That's all I got
_________________
Keep on Busin'