986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Check engine light

jfmillr · 03-27-2003, 11:24 AM

Generally I think the codes are pretty accurate, but not always. I had the check engine light come on myself and told me to replace my o2 sensors. I did it and the check engine light came back off within about 100 miles of installing then saying the same problem with the new sensors.I had my car Dyno'd and the results came back saying my fuel/air mixture was off. Due to modifications I had performed it was obvious I was going to continue to run into this problem. I had to have my fuel chip modified once again to change the limits of the error codes coming on.

I would think utlimatly to fix your troubles you might consider putting your car on a Dyno to see how it is truly responding. And at that point have a porsche specialist fix whatever problems that might become know during the use of a Dyno. This will give you a much better reading then an Odb2 code reader.

03-27-2003, 11:24 AM	#2
jfmillr Registered User Join Date: Mar 2003 Location: Alexandria, VA (PCA Potomac Region) Posts: 384	Generally I think the codes are pretty accurate, but not always. I had the check engine light come on myself and told me to replace my o2 sensors. I did it and the check engine light came back off within about 100 miles of installing then saying the same problem with the new sensors.I had my car Dyno'd and the results came back saying my fuel/air mixture was off. Due to modifications I had performed it was obvious I was going to continue to run into this problem. I had to have my fuel chip modified once again to change the limits of the error codes coming on. I would think utlimatly to fix your troubles you might consider putting your car on a Dyno to see how it is truly responding. And at that point have a porsche specialist fix whatever problems that might become know during the use of a Dyno. This will give you a much better reading then an Odb2 code reader.