Dec 25, 2000
3:21 PM PST
Hello all,
Well I'm not sure to replace the harness fix for the AFM or just go with
a new AFM from bus depot. VW original part vs bosch? $20 cheaper on VW
part from bus depot. Any opinions.
Original post follows.
Thanks for all you help
Cheers,
Paolo

Symptoms:
'87 Westy
90,000 miles (drive about 4k a year- not used much-mint)
Original owner (new problem -never happened)
New rotor,cap, wires and installed new fuel filter and 3 cans of gas
treatment (for water absorption).

The van will hiccup or hesitate and lose power momentarily for maybe half
a second, like a hiccup. I watched the tach when it does it and it does
not go down to zero or fluctuate at all maybe when the hesitation is
about a second it may drop one indicator line on the gauge. The frequency
of this happening is now increasing- maybe once every 4 or 5 min.

When it happens: Uphill, cruising and downhill with foot on throttle.

Does not happen: Downhill with foot off throttle, 1st gear or at idle.

Possible areas- let me know what you people think:

fuel pump relay
fuel pump
ignition switch
distributor pick up (hall?)
air flow meter
ECU