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mmcloud
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Everything posted by mmcloud
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MAF, multiple error codes, O2 sensor, toast?
mmcloud replied to gcortes's topic in 986 Series (Boxster, Boxster S)
I recently had all 4 o2 sensor codes come on all at once. The car still ran fine and mileage was good 28 on freeway so knowing that it is virtually impossible for all to go bad at same time I looked into cleaning MAF sensor. I pulled it out, cleaned with MAF cleaner, inspected and noticed some discoloration on the metal sensor that I couldn't get off with the cleaner. I inspected some more and under the right light conditions I also notice some pitting in the metal coating. I ran about a half a can of cleaner through it trying to clear the discoloration but to no luck. After putting sensor back in, the car ran bad and misfired. I ordered a new MAF sensor, installed and the car ran better than ever. Since I owned the car at 5000 rpm the engine started to cut out a little bit. I thought it might be some limiting setting since I was approaching redline but since I replaced the MAF there is no more cut out at 5000 rpm and wow that makes it so much more powerful. I thought that might help someone out there