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O2 sensors and open manifold oxygen
Posted to Technical Theory Forum on 11/17/2010 15 Replies

Would having the exhaust pipes off of the manifolds cause any oxygen to revert back into the manifold and skew the O2 sensors? [right bank]

Right now I have O2 sensors switching at +25 LTFT with STFT hovering around 0, but STFT kind of goes every which way s... Login to read more.

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car Vehicle Data

1998 Ford E-250 Econoline 4.2L

Engine4.2 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1998 Ford E-250 Econoline 4.2L

Engine4.2 L
Trans4-speed Automatic (Electronic)