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/ _______________________________________________________ 1985 Volkswagen Vanagon 2.0 L Trans: Standard Mileage: 250 miles VIN: WV2YB0250FH049006 Fuel: Bosch AFC Digijet Ignition: Electronic Emissions: Calif Symptoms: Hesitation, Low power Occurs: Always, Hot ____________________________________________________________ The problem occurs after a short warmup, usually within 3-4 minutes. It seems to be too lean - has no power and a lean backfire thru the intake - adding propane smooths it out and eliminates the backfire but throttle response still seems a bit slughish. I have check the Coolant temp sensor, it is 190 ohms @ 200 degs, measured with a raytek at the temp sensor, which is in spec. I have listen to all 4 injectors with a stethescope and they sound fine. I have not yet checked fuel pressure or pulse width. The problem comes on quickly as it warms up, not gradually. It also seemed to come-and-go (sometimes worse than others) during the 15-20 minutes it was idling while checking it. Any ideas which way to go from here? Thank you
Robert Grove moblwrench@aol.com Owner/Technician Accurate! AutoWorks Riverside, California, USA iATN Business Sponsor http://www.iatn.net/atn/moblwrench.html
___________________ TEST AND REPAIR DATA ___________________ EXHAUST GAS READINGS (Idle) CO = 2.0% HC = 110 ppm RELATED REPAIR HISTORY Recently rebuilt engine, has rebuilt airflow meter and new coolant temp sensor _______________________________________________________ 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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