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Replacing O2 Sensors and Air Flow Sensor

996noob
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996noob Member

996noob

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I'm going to replace my O2 Sensors and Air Flow Sensor at one go.

Do I just reset the ECU by disconnecting the battery, and then just drive normally? Anything special I need to do when first starting up or on first drive?

I heard some mentioning doing a "drive cycle". What is that?

996noob Member

996noob

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  • Author
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What are your fault code(s)?

No fault codes. But I have bad surging and flat spots at WOT, especially at the last 1000 rpms before redline, the engine doesn't want to increase revs, so sometimes it doesn't even get to shift to the next gear.

996noob Member

996noob

Posted
  • Author
Posted
What are your fault code(s)?

No fault codes. But I have bad surging and flat spots at WOT, especially at the last 1000 rpms before redline, the engine struggles to increase revs, so sometimes it doesn't even get to shift to the next gear.

Basically, the power gets released for a few hundred rpms, hangs on and struggles for a few hundred rpms, the advances again, then struggles again and get worse at high rpms.

996noob Member

996noob

Posted
  • Author
Posted (edited)

Sorry for the erroneous multiple posts.

No fault codes. But I have bad surging and flat spots at WOT, especially at the last 1000 rpms before redline, the engine struggles to increase revs, so sometimes it doesn't even get to shift to the next gear.

Basically, the power gets released for a few hundred rpms, hangs on and struggles for a few hundred rpms, the advances again, then struggles again and get worse at high rpms.

When I unplug the MAF, the car is like a rocket, but runs so rich I can smell the hydrogen sulphide from the cat.

Edited by 996noob

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