-----Original Message----- From: Roland Kloyber [mailto:rkloyber@vancouver.crosswinds.net] Sent: Tuesday, June 20, 2000 2:34 PM To: VANAGON@GERRY.VANAGON.COM Subject: Euro-Drive: 90 Volkswagen Vanagon, Poor-idle/Hesitation
iATN Help: send blank email to: help@i-atn.com Upgrade: http://members.iatn.net/enhanced.html Archives: http://members.iatn.net/sponsorsindex.html Post Message: http://members.iatn.net/email/ _______________________________________________________ 1990 Volkswagen Vanagon 2.1 L Trans: Automatic Mileage: 65,000 miles VIN: WV2ZBO255LGO33745 Fuel: digfant Emissions: canadian Misc Data: Westy Symptoms: Poor Idle Quality, Hesitation, Cuts out, Stall Occurs: Hot, Under load, Idle ____________________________________________________________ Set up all the gear fuel gauge, volt meter to O2, Fluke to distibutor watch wave pattern, do voltage drops on ground to ECM and check power to ECM run extra ground from block back to battery,replace CTS and harness. Run engine from cold just befor full temp the problem occurs (the customer says it is very random hot cold and then will not show up for days) It idles a little rougher crack the throttle and nothing crack it more and a good healthy back fire though the intake the volt meter conferms this on the O2 but fuel pressure is steady wave pattern on distributor solid. Have replaced ECM, air flow meter,Idle stab motor, coil ,distibutor Idle stab relay from a good running vehicle no change. Have checked fuel filter again and remove injectors and checked injector screens. I think I will try the buffer harness for the air flow meter in Mitchelle on Demand suggested for Hwy surging any other ideas?
Roland Kloyber rkloyber@vancouver.crosswinds.net Technician Fenders North Vancouver, British Columbia, Canada
___________________ TEST AND REPAIR DATA ___________________ Checked for codes and none were found. TESTING AND RESULTS fuel pressure - 32-35psi RELATED REPAIR HISTORY Comes in loss of power, poor idle, proceed with full tune-up comes back still the same, test drive 5 different times,car runs great, clean grounds on block and grounds my coil also replace with new ground from block to body, suggest fuel purge it was done test drive drives excellent. Customer takes car 5 min. comes back still same, I go with the customer he applies 1/4 to 1/2 throttle the big goose egg. Then power comes on and goes off but the Tach stays steady _______________________________________________________ iATN Industry Sponsors: http://www.iatn.net/atn/ iATN WebSite: http://members.iatn.net/index.asp Guidelines: http://www.iatn.net/guide.html To configure or cancel your iATN account see: http://members.iatn.net/config/index.asp |
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