Re: Lean @ WOT
Posted: August 1st, 2018, 8:52 am
To be honest I've never seen a 2.3DISI-T primary O2 sensor going bad like this, but I've seen this with aftermarket sensor with a different response curve, with inappropriate aftermarket MAF sensors, and with exhaust leaks.
However, I can't rule out the possibility that the O2 sensor is clogged or has a weak wire which does crazy stuff when the car accelerates hard.
On the other hand I wonder what adding 12% more to your current MAF cal will do. Maybe it is that much larger, maybe the internal diameter doesn't help the MAF register the amount of air it should if there is no air straightener in there. With custom stuff you can easily end up in such situations...
However, I can't rule out the possibility that the O2 sensor is clogged or has a weak wire which does crazy stuff when the car accelerates hard.
On the other hand I wonder what adding 12% more to your current MAF cal will do. Maybe it is that much larger, maybe the internal diameter doesn't help the MAF register the amount of air it should if there is no air straightener in there. With custom stuff you can easily end up in such situations...