About John Nelson Expertise All questions on Volkswagen 99.5-present A4 Jetta,1998-present Passat
All Touregs 1998-present Beetle 2003-present Beetle Converible. Please no A3 or B4 body style. fOR TECHNICAL ANSWERS I NEED THE VIN#. Or year, engine,make and model. Please be discriptive so I can help the best way possible.
Experience Six years at a quality analisis program dealership.
Education/Credentials AS degree of automotive science.
Awards and Honors Volkswagen Expert level. ASE Master Auto Technitian, L1 Certified. 2008 Certified.
Expert: John Nelson Date: 4/19/2007 Subject: Oxygen Sensors
Question Two weeks ago my "check engine" light came on in my 2002 VW Beetle. The code came up as the oxygen sensor, so I had my mechanic replace it. (Not the dealer) Three days later, the light reappeared. It has been coming on and off ever since. I am so frustrated! This car has really been a big problem for me.
Answer Well there are over 250 reasons for the light to come on. An O2 sensor fault has many ways of failing. The P0# for the code would be the best. The VIN# as well. The technician which looked at your car should recheck the faults and the quality of the work. Keep me in touch and let me know how it goes.
