double air flow meter

Hello,

I am currently dealing with a VW Phaeton engine V8 4.2L which uses two
seperate air flow meters and I want to use only one air flow meter.
Somebody out there who can provide me with some information about air
flow meters and if I can divide the signal of one large air flow meter
into two signals to substitute the two small air flow meters?

Twiztlock

wrote:
> Hello,
>
> I am currently dealing with a VW Phaeton engine V8 4.2L which uses two
> seperate air flow meters and I want to use only one air flow meter.
> Somebody out there who can provide me with some information about air
> flow meters and if I can divide the signal of one large air flow meter
> into two signals to substitute the two small air flow meters?
>
> Twiztlock

The twin airflow (or mass airflow, not familiar with your engine)
meters are in place most likely for more precise two bank control.
Just as the left and right bank O2 sensors report independantly to the
ECM, other sensors such as the AFMs also let the ECM know what each
bank is doing. The ECM controls injector pulsewidth for each bank
separately after processing the main sensors and then trimming that
value with O2 sensor feedback data.

You would lose that functionality and performance/efficiency to some
degree by using one airflow meter, even if you tricked the ECM into
thinking it sees two separate inputs.

Toyota MDT in MO

The sensor is not bad, it is just the case that I only have room for 1
air flow meter and I have the intake from a former project which fits
on this single air flow meter. Furthermore, it is not an air flow meter
for seperate banks, the air flow through either one of the meters and
then to a common throtlle house.

I hope someon can give me some help on this, maybe some charateristics
of air flow meters?

regards,

Twiztlock

The Air Flow Meters mentioned are manufactured by Bosch (part nr. small
one=0 280 218 060, part nr. large one= 0 280 218 069). Does someone
have the characteristics of these ones? Or does someone has experience
with Bosch Air Flow Meters and can tell if they always have a
linear/non-linear behaviour?