mK2 16v ecu differences?

Is it just an urban myth or do the earlier mk2 16v ECUs have a 'sharper' ignition map?

part numbers??

 

i know Paul is running a 'racing' ecu on his jetta

 

The one with the "B" on the end of the part number`s got more agressive advance I think?

 

this is intresting do this mean it will be able to rev alittle quicker?

Vduber

 

I've got a 16V ECU here that most certainly came out of a pre-90 spec 16V, but what year specifically I don't know.

The code is 811 907 384. No letter on the end.

I've also ripped the ECU out of my own 16V now. I'll compare the numbers when I get it out of the garage.

 

I have the one off my 1990 16v in a box at work, i'll check the number on that as well.

 

I know the south african ones had a more retarded timing curve to cope with lower octane petrol......

 

Was speaking to 'fast eddie' on MSN, Steve Creswell (lol) told him about it from what I can make out.
I've got the one off my old 'VVO' 16v somewhere, will compare numbers to the one on my car.

 

I have ECU off my 86 16v would that be able to be used on my 90 16v.?

 

there are some differences i found a differnece when i fitted a later one to the old mk2 16v

apperently you can change a resistor in them to make it rev higher

 

i thought the ones with a B at the end means they can run on normal unleaded

 

Theres this 1 on egay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=988 9&item=2488799226&rd=1

 

Mines 811 907 384 B

Thats off a 1990 G-reg (and its also the same car where i got my user name from!!!)

 

Check out the vaccum pipe, not been wacked at all........

 

Bloody hell!! 40, all his stuff is overpriced.

Mines mint and still on the bracket i might whack it on for 60

 

Ok, thought as it's the Dubchicks RR day this Sunday, that I better dig out the ECU from the old 16v and fit to the car.

The part numbers are different, the one on the car ('91 J reg) was

811 907 384 B

And the one on the old car ('87 D plate) was...

811 907 384

Fitted it and will see what it does Sunday, does 'seem' to pull over 6k better than before.

Conflicting opinions as to whether the B prefix ECU is the sharper map or not then?

 

why not run the 2 on the same day,only takes minutes to fit,be a better indication?

 

Not a bad idea Louis

Might take it and see if there's any difference.

 

The ecu's i have ,,old one numbers are the same bar one is 00 and the newer ones are 01 or the other way about ,,older ecu's have green
print newer ones have white or is it gray
my car runs better with the old ecu

 

What year and spec is the car you are running as I have yet to get round to fitting old ECU in as I wanted to try out 90 spec ecu on early KR engine for a while first.
And in what way does it run better?