O2 sensor??
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Postmaster
Joined: Dec 2004
Posts: 2,941
Likes: 30
From: Maple Valley, WA
O2 sensor??
Ive driven my 91 E250 I just bought a little bit and Ive noticed it has a slight miss going down the highway and also starts running rough after sitting at a stoplight for prolonged periods of time. Runs fine on acceleration, no hiccup at all, just when driving and a little while at idle. I was thinking it might be the computer going into closed loop and if the o2 sensor is bad that might be the problem, also, smells a little sulfury. Could this be the o2 sensor or something else?
New User
Joined: Mar 2006
Posts: 9
Likes: 0
It's not the O 2 sensor. I have the same problem and have replace a few sensors and still have not found the problem. I have a computer to pull the codes and there was nothing there. I have a couple of more things that I am going to try and if I find out the problem I will let you know.
New User
Joined: Mar 2006
Posts: 9
Likes: 0
I just replaced the Idle air control valve. It has fixed the problem so far. If you go to Auto Zone the part number is TV205, have them look it up to make sure. It is not priced to bad I pad about 50 for it and it is on the top of the engine. It was 2 bolts and a plug.
