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Old 09-04-2014, 02:15 PM   #1
Join Date: Sep 2014
Vehicle: 2005 ford mustang v6
Location: ca
Posts: 2
Default Running Extra Lean On One Side

So I changed my spark plugs and wires like I've done so many times before but this time the check engine light came on. I got my neighbor's code reader and it said cylinder 5 was misfiring. So I took out the new spark plug that I had just put in and took it back and exchanged it. Now its running better (but not good) but not the code on the check engine is saying that it was runner extra lean on one side. now I don't know what this means so does anyone know what this means? cause its making my car sputter and has a really hard time going up anything that has a incline

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rambo5459 is offline   Reply With Quote
Old 09-04-2014, 03:48 PM   #2
Join Date: Sep 2014
Vehicle: 2005 ford mustang v6
Location: ca
Posts: 2

could it be the O2(oxygen) sensor that is making it run a little ruff?
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Old 09-04-2014, 11:28 PM   #3
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2011V6Nicole's Avatar
Join Date: Feb 2013
Vehicle: 2011 Ford Mustang
Location: Harrisburg, PA
Posts: 216

it could be an o2 sensor, my check engine light used to come on for one side running lean. I got a new sensor and it solved the problem. You should also get a code for a bad o2 sensor along with the running lean. If not im not sure replacing it will fix anything.

2011 V6 - Steeda CAI, BBK TB, BBK Long tube headers, BBK catted xpipe, Pypes Pype Bomb Axle Back, Steeda strut tower brace, Barton short throw shifter and bracket, SR lowering springs and adj panhard bar, 1 piece Aluminum drive shaft, 3.73 gears, Bama race tune
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Old 09-04-2014, 11:28 PM
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