After car got tuned it falls on it's face - Mustang Evolution

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Old 05-21-2014, 01:43 AM   #1
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After car got tuned it falls on it's face

So I got my 1988 tuned the car has a trick flow topend kit in it with 24 pound injector and a 255lph fuel pump.i got the car back from the dyno with respectable numbers.problem now is if I give the car half throttle it falls on it's face back fires and just does not sound right.if I floor it the car takes off like a rocket.not sure if it's a bad tune a bad fuel pump or the throttle positioning sensor or a vacuum leak any help would be great
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Old 05-21-2014, 08:33 AM   #2
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At WOT the fox computer switches to RPM based fuel tables vs load based. Sounds like your tuner sucks and you need a re-tune.
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Old 11-30-2014, 07:42 PM   #3
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I agree a re tune in deed maybe wires got crossed or something didn't get put back proper


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Old 11-30-2014, 08:08 PM   #4
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Wow, way to necro this thread lol.
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