Another one from the international Automotive Technician's Network.  Any
digifant experts want to take a stab at it?  Please reply to Walter, not me!

Jim Arnott
WetWesties
Union, OR

1987 Volkswagen Vanagon 2.1 L

Trans:         Automatic
Mileage:       125,000 miles
VIN:           WV2YB025XHH059786
Fuel:          EFI
Emissions:     US Fed

Symptoms:      Excessive Emissions, Poor Idle Quality,
           Hesitation, Stall, Poor Fuel Economy
Occurs:        Always

____________________________________________________________

I have changed the coolant sensor, O2 sensor, MAF with new
unit. I leaked tested all injectors, found all to be okay,
pulsated all injectors, 2 psi drop on all injectors, fuel
pressure regulator is not leaking, found no vacuum leaks,
changed ecu with known good unit out of another van and
both computers were same in my van and both worked good in
another van. This van is running extremely rich any ideas
would be greatly appreciated.

Thank you

PS Idle control does not seem to be working and Idle air by
pass motor was replaced with no change in idle quality.

Walter Leblanc
mailto:walter@flinet.com
Owner/Technician
Ahrens Auto Service
Boynton Beach, Florida, USA