5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

sluggish

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Old 05-23-2012, 03:22 PM
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adrnlnjnky700
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got back from sea after i had the car running mostly right, now it just seems a lot more sluggish. i took out the plugs and gapped them, they were a little black nothing extreme. My big concern is nothing happens when i unplug the MAF, Im pretty sure it should have done something when i unplugged it. i have a 80mm setup for the 24lb injectors i have. any ideas or things to check. thanks
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Old 05-23-2012, 04:15 PM
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mattdel
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Unplugging the MAF should have put the computer into a limp mode. If no reaction, you're already in limp mode. Possible bad MAF.
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Old 05-23-2012, 04:42 PM
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adrnlnjnky700
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is there anyway to get it out of limp mode, ive had the battery off multiple times. i put new o2 sensors in it about 200 miles ago.
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Old 05-23-2012, 04:47 PM
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mustangGT86_05
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No maf readings usually cause a car to run like complete ***. I'm going to agree with matt, you will most likely need to replace the maf. It should throw an error code though, I'm going to assume you replaced the o2 sensors due to a thrown code? This doesn't always mean they are bad
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Old 05-23-2012, 04:59 PM
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adrnlnjnky700
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i put o2 sensors in because it never had any period, guy i bought the car from had the bungs put in but never put the sensors in, i disconnected the batter, put the sensors in and plugged it back up, it seemed to run pretty good after that(i.e. not sluggish). the sensors in the MAF are still in tact.
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Old 05-23-2012, 05:35 PM
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adrnlnjnky700
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i bought an SCT chip for it that i havent hooked up, i dont know if it just needs to get put on a dyno and tuned because of everything i did, or if something is messed up that i should fix before i go to the dyno
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