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996 Acceleration Flat Zone

tsandfor
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tsandfor Member

tsandfor

Posted
Posted

:o Can someone help me with my 1999 996 (58k miles) engine malfunction? The engine idles and runs smooth however under hard acceleration, the power drops off somewhat above 5000 RPM. Still smooth, just less power. Tried to fix by changing plugs and cleaning 02 sensors. No efffect. Recently got check engine light. Scanned and got P1123 and P1125. Cleared and have not returned. Could the flat spot be a bad 02 sensor? Coil? MAF?

Thanks,

Tim Sandford

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auclutch Member

auclutch

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i have had the same problem as well with the same codes~ I cleared them and the problems went away. hope you find the answer so I can get mine fixed as well. can you do me a favor and email me at auclutch@hotmail.com when you get the answer?

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