Air Flow Meter

On Mon, Sep 21, 2009 at 8:21 AM , T Collins wrote:

> Hello Folks,
>
> How quickly does the O2 sensor give a signal to the ECU? I notice a
> split on
> the green wire connector to the sensor. I patched it with a new
> connector. I
> noticed that the green wire seem like 2 wires one inside another
> sheet. Does
> that seem familiar?
>
> I am still having problems with what seems to be Vanagon Syndrome. I
> am
> trying to find out why the van will idle fine and smooth for a minute
> or two
> and then miss idle. The timing mark is steady with the split on the
> case
> until a minute or two then it jumps around from the case point and
> then to
> the left (facing the van from the rear) drivers side of the van.
>
> If driven the van still runs like poo, buck and continues to stumble
>
> The idle then becomes ever so erratic. What could make this mark jump
> like
> so?
>
> Spark:
> New spark plugs (double checked the gap)
> New plug wires
> New rotor
> New cap
> Timed with static light using recomendations on rpm and timing
> settings.
>
> Air:
> Vacuum lines checked with carb cleaner
> Little vacuum lines replaced
> New air cleaner
> New injector seals
>
>
> Fuel:
> New pre pump fuel filter (the square one)
> New fuel lines
> Pump seems to be humming along
>
> Grounds:
> All grounds to the chassis under coil there checked and cleaned.
>
> I am missing something....I just dont know what it is:
>
> Plan:
> Replace temp II sensor
> Place capasitor on AFM
> Check O2 sensor
> Re-time (x100)
>
> Thanks,
> Tony
> --
> 82 Scirocco "Rodolfo"
> 85 Vanagon "El Guapo"
> 90 Fuji Ace