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bogs down when floored...

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Old 10-06-2009, 02:42 PM
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9165pt0
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Default bogs down when floored...

i have been fixing diff issues with my car and it seems like once 1 thing is fixed, something else goes out of whack. i finally got it to idle right and got many of the codes to go away. it drives fine when its normal acceleration half the time. the other half it will make popping noises under the hood under acceleration and it seems lke throttle is cuttin in and out, jerking around. also even when it drives good, it wont go anywhere when floored. flooring it feels like im not giving it any throttle at all?
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Old 10-06-2009, 02:49 PM
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89stangbanga
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By any chance have you changed anything out to do with fuel? I.e. injectors, maf (Mass air flow sensor) throttle body, sampling tube?
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Old 10-06-2009, 04:29 PM
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yes i have. i just installed 24lb injectors and sample tube, but last week i could floor it and it would go. didnt seem like full power, but it would definately go. now it doesnt even budge.s

iam still getting codes 41 and 91 and the spark plugs were white on th tips, but at idle it smells pig rich and burns your eyes. so im really confused.
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Old 10-06-2009, 05:02 PM
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mattdel
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definite MAF problem. send back as defective and try another IMO.
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Old 10-06-2009, 05:32 PM
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umm u think it is the maf meter or sensor? because iam using the same sensor
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Old 10-06-2009, 05:33 PM
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89stangbanga
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Originally Posted by mattdel
definite MAF problem. send back as defective and try another IMO.
That's definitely a possibility. Do youself a favor and grab your stock injectors, get a white piece of paper and tap out the injectors on a flat surface and see if anything comes out of them(tap it out on the opposite side of the pintle cap). i.e black soot or any sediment. Could be that your injectors are clogged. My car used to do the same thing til i changed out the fuel tank and fuel pump and cleaned out my fuel system then it ripped like hell. But it does sound like it could be a maf problem as well.
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Old 10-06-2009, 05:35 PM
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u think the new injectors could be clogged already?
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Old 10-06-2009, 05:39 PM
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Originally Posted by 9165pt0
u think the new injectors could be clogged already?
Doesn't take very much for them to get clogged. Just tap out your old injectors, if there is nothing in the old ones that means your fuel system should be relatively clean. Which will let you know that's not the issue. Did you buy the maf, injectors, and sampling tube new?
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Old 10-06-2009, 05:51 PM
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yah new mass air meter, injectors, and sample tube. same old maf sensor.
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Old 10-07-2009, 01:50 AM
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i have bigger injectors and t body with a stock mass air and it runs and idles fine..? think that would still cause issues??
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