Tuning?

[tim]

Originally Posted by TheBlizzard

I forgot you O2 sensor was in your downpipe and not the O2 housing. I guess it could have been the problem, but unless it was totally just hanging there and not connected at all it should have been giving a reading even if it was leaking. I guess see how it acts tonight and go from there.

Even a slight leak before the O2 sensor would cause a false reading. All that air flowing by would be sucking more in from the outside. I had a similar problem on a completely different vehicle where the there was a leak before the O2 sensor and it caused some very poor driveability. I am not saying that is is for sure the problem but even the slightest exhaust leak before the O2 sensor can and probably will cause problems.