Audi 80 b4 bordcomputer

[Skull]

you owe me a drink

http://www.audifieber.de/audiforum/threads/308-B4-BC-%28Bordcomputer%29-f%C3%BCr-TDI

[Skull]

it is possible to do it, but it was not original. never. you need to have the lates 1Z engine, model year 1995 with 202nm torque, and make an interface for the consumption signal.

[shellah]

but somewhere I read it's possible do do it in

[Skull]

no b4 tdi ever had the bc.

[shellah]

If you want to have true value of fuel consumption you may buy or do it by self like in article.But for what?To instal only Bc you have to find a wire form ECU responsible for fuel consumption(ussually yellow colour)like everything what wrote Skull

[Marius]

How about this idea:

http://www.audifieber.de/audiforum/threads/308-B4-BC-%28Bordcomputer%29-f%C3%BCr-TDI

Someone told me, cuz there's on the BC switch, between 'Diesel' and 'Petrol' mode.
so, if we have to install some PWM, why needs this switch?


p.s. does any body knows Audi b4 TDI with stock BC?

[Jas11n]

Thanks Skull.
Just found that out.
Pin 9 on ECU's later than 1994 have a fuel consumption output, but not mine.
Even then, the later ECU's still need you to make and fit a PWM (pulse width modulator) for it to be half accurate.

Thanks again.

[Skull]

Yes it comes from the ecu. Forget about putting the BC in the tdi, there is no such signal from the ecu. sorry

[Jas11n]

this is the consumption signal wire, some cars have it just yellow, some yellow/green. to get the BC working, you only need to connect this wire. All the other signals come from the speedo cluster. just find the black connector under the steering wheel and you will see it.

Skull? where does this yellow or yellow/green wire come from in the loom?? ECU?

I'm putting a minicheck/BC in the TDi, but I have no yellow or yellow/green wire coming into that plug.

Thanks for any help.

[A80Avant]

hey spyro,now there is a chance to make your car a quattro as well,as it seems that it can be done!! maybe you should look for that stuff as well!! hehe

[spyros80]

Competition stuff

Thank you very much!! I will be waiting for your news. I have already a type M3lipspoiler on the trunk which is very discrete. But I will have your spoiler in mind as I want to finish with the bumpers first. I have also put 16x7,5'' ABT alloys and the car looks very bad. I hope if you find the cluster it will work on my car as the tacho is longer (260)

[Skull]

B3 has smaller diameter of the wheels, that is why it was not showing the right values. Maybe i have one at home, i will take a look. I also have a competition rear spoiler and competition wheels for sale

[spyros80]

ACE instrument cluster

Thank you very much for your help i asked this question as I bought a 220 cluster with white faces from ebay last June and when it came I discovered that it was coming from a B3, so the speedometer doesn't work properly. Iam noticing differences like: In 5000rpm with 5speed I had 160km before the change. Now I see 155km. And as I approach in the maximum speed I have a loss of around 10km!! Is it rational?
Where can I find an ACE cluster as I don't trust the ebay? Do you believe that the ACE cluster will work fine as far as the speedometer is concerned?

[Skull]

It will work with no problems, just the V6 are useless on 4/5 cilinders cars.

[spyros80]

b4 bumper

Thank you very much. You' ve been very helpful. Iam very lucky Iam chating with you. So, the front bumper holders are different too. One more question about the instrument cluster. Do you think that I can use the ACE cluster (260km) without having problem with the car's pace? I ask this because the ACE motor is 4 cylinder too. Will it work such a cluster at my car or I need a new sensor for the speedometer?