Throttle Hang
Jun 24, 2009, 05:05 AM
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Throttle Hang
I posted a thread in the Engine/Drivetrain forum to get some help on what I've been told is "throttle hang." Basically, my car will continue to accelerate even after I've released the gas pedal and pushed in the clutch. I don't know how this happened or how to fix it. Anybody know anyone who can help or what to do?? It's starting to **** me off 
Jun 24, 2009, 05:10 AM
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I posted a thread in the Engine/Drivetrain forum to get some help on what I've been told is "throttle hang." Basically, my car will continue to accelerate even after I've released the gas pedal and pushed in the clutch. I don't know how this happened or how to fix it. Anybody know anyone who can help or what to do?? It's starting to **** me off
Jun 24, 2009, 05:16 AM
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Only time I have seen this happen is when the Blow off valve return line (the one that vents back to the intake) is pinched off due to an overly tight bend or improper fitment. If the return line is pinched the boost pressure cannot vent properly and gets "shoved" back into the throttle body, for lack of a more elegant description.
Jun 24, 2009, 05:24 AM
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humm, I only had this problem at WOT and chaulked it up to my bov. I believe it has somthing to do with false readings to the MAF sensor. Soo, check to see if your filter is clogged or if debris got inside to lay on the MAF comb. Just throwing ideas your way.
Jun 24, 2009, 05:33 AM
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Yea. i only had this problem at WOT also. I would get up to about 7500 rpm let off and it would sit at that rpm for like 10 seconds i would have to put it in gear and push the brake a little. My car did it a good number of times but since i pulled the motor to do a 2L build i dont have that problem anymore
let me know if you find out the problem
let me know if you find out the problem
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Jun 24, 2009, 11:33 AM
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My Evo did that to me and we find out it was my TB..We put another TB on it and it hasnt did it anymore..We did a boost leak test and my TB was leaking the seal was bad
Jun 24, 2009, 11:45 AM
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Swap the stock maf pipe in and I bet the problem goes away........just use the maf adapter/cone filter from the aem. I ran this same setup with no issues, now I run a amsoil filter instead.
Jun 24, 2009, 12:21 PM
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Yeah i replaced my seals and it still did it. i think its my butterfly. i owne a Machine shop and i made my butterfly on a Lathe. it might be off about .002-3 ill probably make a new one here soon when im done with my build.
