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aerogianni
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p1123 and p1125 99 boxster replaced maf
aerogianni replied to aerogianni's topic in 986 Series (Boxster, Boxster S)
:welcome: P1123 Oxygen Sensing Adaptation Area 1 (Cylinders 1 - 3) - Lean Threshold P1125 Oxygen Sensing Adaptation Area 1 (Cylinders 4 - 6) - Lean Threshold This says that the DME thinks your mixture is too rich - and can make it lean enough. Potential causes are: - Fuel pressure too high. - Fuel injector leaking. - EVAP canister purge valve open. Make sure the MAF is functioning properly by reading the air flow at idle and at 2500 RPM no load (you will need Durametric software, a PST2 or PIWIS tester to do this). Scan for more codes - It could be a stuck EVAP purge valve. my scanners will not give me much information, i really doubt an injector problem on both banks, how could i determine a stuck evap valve -
p1123 and p1125 99 boxster replaced maf
aerogianni posted a topic in 986 Series (Boxster, Boxster S)
I have a 99 boxster got the 1123 and 1125 codes, from the research i figured i needed a new maf. i replaced the maf and got the same codes after about 3 drive cycles. i really need help i dont know what else to check next. the bellows looked good i checked it today and also have looked for anything obvious