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Old 09-16-2014, 01:01 PM   #1
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Little to no acceleration?

New to this thread..just put on a trick flow 75mm throttle body and plenum on my 01 gt at lower speeds seems fine and I can get on it hard but when I let off and cruise and try to get in it again it's like little to no acceleration any thoughts on a problem?


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Old 09-16-2014, 03:27 PM   #2
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Well this is strange.
This problem only started to occur after changing the TB and Plenum?
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Old 09-16-2014, 05:05 PM   #3
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Yea that's why it has me stumped it never did it before


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Old 09-16-2014, 07:41 PM   #4
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I assume you took the TPS off the old throttle body and applied it to the new one. That being said, I would inspect my work. I would disconnect the TPS to make sure the prongs inside the TPS are straight and not bent or broken, and make sure the harness is plugged in all the way unto the TPS, and the pigtail is not damaged. The TPS is responsible to send info to the ECM of where the throttle plate is at during acceleration and idle.

It can cause bucking and jerking/hesitation while accelerating, idle surging, sudden stalling of the engine, sudden surge in speed while driving on the highway, and also but not all the time a CEL.

So since this is the one component that would have been messed with in your part changing endeavor, I would go over my work at the TPS and make sure it is all good to go. I am not saying it is bad, it may be, but that is where I would start, and I would re-inspect my work there.
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Old 09-16-2014, 07:41 PM   #5
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I've heard that the TF Plenum loses a bit of power on the low end, but I haven't been paying much attention to those threads because I have a Bullitt... Perhaps one of the other members can confirm that.
I'd go back through and carefully check everything that you did and make sure that all of the vacuum lines are plugged into where they should be.
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Old 09-16-2014, 07:57 PM   #6
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I'll go back through and double check thanks for the advice guys


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Old 09-17-2014, 03:36 AM   #7
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Downshift

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