2005 Ford Mustang Logo
Posted on Sep 03, 2008
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2005 mustang gt

Car is running lean and plugs are misfiring

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brandon69646

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brandon69646
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Old but cant help it had this with a dirty maf sensor

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If check engine light is on its probably the O2 "oxy. sensor" or the temperature sensor. O2 would mess up your fuel mixture, and cause some miss-fires. Temp. would make the auto choke stick, and mess up your mixture.

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Have you changed the air filter at all

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  • Posted on Sep 03, 2008
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Replaced fuel filter yet ? have you checked fuel pressure and the fuel regulator

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05 mustang gt had plugs changed. And the shop put colder plugs in. Now after some playing around i get random miss fires

check your coil packs or your ignition leads other than that if it continues change the plugs if it still happens take it to a mechanic sorry i couldnt be of more assistance
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2005 Mustang GT emission control light

SORRY, I ALWAYS JUST PUT BLACK ELECTRICAL TAPE OVER THEM...NO EMISSIONS WHERE I LIVE
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My 2006 mustang gt misfires under load in higher rpms

For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

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Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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This will help.

Thanks.

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SYSTEM TOO LEAN BANK 2 MUSTANG 2002 3.8 ENGINE

Generally if the vehicle is running lean on one side the O2 sensor is bad. The oxygen sensor is normally located at the back of the exhaust manifold, and there is one on each side. It is best to replace both at the same time to save money and problems later on.
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My 2005 mustang GT was scanned and the following codes came back: P0171 AND P0174. What does these mean

P0171 Means system is to lean on bank #1. P0174 Means system to lean on bank #2.
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My 96 mustang gt 4.6L automatic is running like

vacuum leak. it wiil cause a misfire code to be set because too lean from vacuum leak.
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2005 Focus. engine light is on and codes say bank one running lean... Any idea as to where to start? Did tune up and have replaced O2 sensors recently

Try a fuel line/injector cleaner you may have a blockage affecting fuel flow causing the low (LEAN) fuel to bank one code. Raz,..
0helpful
1answer

2003 ford mustang

HI, i have the samme problemeon my mustang gt 2006
idid hevriting ,plug chek wires , and the probleme was the valve was sticking on the guide ,we change the head , and now it is very jood, good luck
it was misfiring whit no code
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