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1985 Volkswagen Vanagon

Engine:        1.9 L / 4 cyl / Gas / OHV
Fuel:          Fuel Injection
Ignition:      Distributor-Breakerless
Trans:         4-speed Standard Transaxle
Mileage:       150,000 mi
VIN:           WV2B0252FH050867

Symptoms:      Surge
Occurs:        Always

_________________________ UPDATE: __________________________

Update on this l985 Vanagon, This van has only l switch on
the throttle body. Swapped and put new switch on with no
change. Clean Grounds again. Check ox sensor wiring ok,Van
runs fine dead cold. When it is warm and just off idle, I
get a severe surge and runs rich. If you disconnect temp
switch wire it runs great. Don't know what I missed??? We
also changed the ECU and the air flow box. HELP thanks Dan

____________________ ORIGINAL MESSAGE: _____________________

Hello Gentlemen, I have a 85 Vanagon that came in for a
severe surging just off idle, it's fine at half throttle.
We did a full tune-up, checked for vacumn leaks, replaced
all engine ground wires, checked fuel pressure. The only
thing we can do to make it better is to disconnect the
coolant temp. switch. We changed the switch with no
success. We swapped air flow box, ECU, checked idle
switches, and did a pin out test at the computer. If anyone
has any more suggestions they would be greatly appreciated.
Thanks guys, Bob.

Robert Philp III
bpvw622@aol.com
Owner/Manager
Bobs Auto Parts & Service
Westspringfield, Massachusetts, USA

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