94 running rough...not right
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Old January 31st, 2012, 07:33 PM   #1
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94 running rough...not right


hi all...i have a prob with my 94 mustang. when the car idles it will do small pops. and is just really rough.i have a new cap and rotor, new spark plugs, 9 mm wires and a new fuel filter.thats one prob. next is my car isss way slow for what i have done to it. i have the following.
bbk cai
bbk pullys
king cobra clutch
3.73s
off road x pipe
slp loud moths
i have this stuff and m car still gets beat by stock 5.0s. idk way but when its cold it runs like a BEAST. when it warms up its a SLUG, when its cold it will go crazy sideways in 1st 2nd and 3rd. when it warms up it does not even spin in 1st. thannks guys
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Old January 31st, 2012, 09:51 PM   #2
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Do the 3 EEC 1V tests and cylinder balance. Hook up fuel pressure gauge. Post results of these tests. No cel? Some of the time a light does not come on even with faults.
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Old February 1st, 2012, 04:48 AM   #3
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You could also try cleaning the MAF sensor.
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Old February 1st, 2012, 08:13 AM   #4
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I need to check my fuel pressure. I did clean the Maf in summer. Just sprayed maf cleaning in it. Everytime i tried doing a test it read rich bank 5?

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Old February 1st, 2012, 02:51 PM   #5
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Check for vacuum leaks.
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Old February 1st, 2012, 11:16 PM   #6
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Where are the vacumm lines? Thats most likey the problem

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Old February 2nd, 2012, 09:49 AM   #7
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Here's a vacuum diagram to help you:

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Old February 4th, 2012, 01:56 PM   #8
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check your coolant temp sensor to, when your car warms up it might not be telling your computer the engine is warm...
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