George Goff said: > In a message dated 4/20/04 6:27:29 AM, > kdlewis_wasting_time@ACCESS4LESS.NET > writes: > > << If your just looking to fill the hole you could put one of my O2 sensor > > monitors in it. > > http://neksiwel.20m.com/photo5.html >> > > The need for this type of instrumentation escapes me. What puzzles me > more > is the wisdom of tagging an unqualified conductor onto the end of a unique > shielded input to the ECU then routing it to the front of the van. It > becomes one > more fly in the ointment. In other words, if the van starts running like > a > pig, first disconnect the O2 sensor monitor before troubleshooting. > > George > I have used a similar air/fuel ratio monitor to fine-tune my air flow meter (AFM). It is a very useful instrument; although I think of it more as a tool rather than something to permanently mount. I used shielded wire of course, grounded at the engine side. By fine tuning the AFM I have improved cold running especially in the 1500-3000 RPM range. When warm the slight hesitation in that region is now gone too. Also I was able to quickly see that the ECU would not enter closed loop mode even with a new O2 sensor. The fault was a broken O2 wire right as it entered the connector for the ECU. Some shops use an oscilloscope to view the O2 sensor voltage; Ken's device will perform a similar function but allow you to monitor it while driving. Ryan |
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