65mm TB = throttle hang?

StealthyWeasel · 02-26-2007, 04:45 PM

I just installed my 65mm TB on the 3L.

For some reason, the throttle likes to hang. The speed bleed on the plate was epoxied shut, so I dont think the TB is leaking because when I coax the revs down (going slow) and then stop it will idle a bit high (~900) but will idle fine. It has an SVT tps. does the TPS have to be re-programmed to the values the 65mm is putting out? Sometimes the revs will rise and hang ~2000rpm higher than I let off at.

Please help.

StealthyWeasel · 02-26-2007, 04:58 PM

also should I be using the mustang GT tps? It seems as though this is what I need, from who i've talked to.

bensenvill · 02-26-2007, 05:19 PM

be carefull with the tps's, some of them rotate in the opposite direction than ours, they are not necissarily interchangeable

J-Man · 02-26-2007, 05:23 PM

All the how-to's that I have read have said to use the SVTC tps.

This is interesting to me since I just picked up a 65mm tb off of eBay.

ilovemycar · 02-26-2007, 05:39 PM

As long as you used the TPS that came on it, or an SVT TPS, you are ok.

As far as the throttle hang...it could be a number of things. Did you tighten the spring on the TB. What i mean is does the throttle plate "snap shut" when you let off the throttle? You may have to turn the spring one more time to make it tight.

StealthyWeasel · 02-26-2007, 05:44 PM

I moved the TB with my intake off via the gas pedal, and my dad watched. There really wasn't anything to speak of, the TB closes promptly. Im sorta confused whats the deal.

J-Man · 02-26-2007, 05:50 PM

I would just try wrapping the spring around one more time to see if that helps get it shut even quicker.

StealthyWeasel · 02-26-2007, 05:52 PM

I suppose I could try, but its when I let off the gas and clutch in to go into the next gear the revs will rise, then hang.

StealthyWeasel · 02-26-2007, 06:27 PM

P0122 Throttle Position (TP) sensor circuit low input

It threw a CEL. Thats the code that was pulled. Any ideas as to what the problems add up to here?

StealthyWeasel · 02-26-2007, 07:06 PM

IMO the TPS is bad.. I guess I solved my own problem

02-26-2007, 04:45 PM	#1 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	65mm TB = throttle hang? I just installed my 65mm TB on the 3L. For some reason, the throttle likes to hang. The speed bleed on the plate was epoxied shut, so I dont think the TB is leaking because when I coax the revs down (going slow) and then stop it will idle a bit high (~900) but will idle fine. It has an SVT tps. does the TPS have to be re-programmed to the values the 65mm is putting out? Sometimes the revs will rise and hang ~2000rpm higher than I let off at. Please help. __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

02-26-2007, 04:58 PM	#2 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	Re: 65mm TB = throttle hang? also should I be using the mustang GT tps? It seems as though this is what I need, from who i've talked to. __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

02-26-2007, 05:19 PM	#3 (permalink)
bensenvill is moving his car Join Date: Aug 2003 Location: Chicago Posts: 13,236 Blog Entries: 4	Re: 65mm TB = throttle hang? be carefull with the tps's, some of them rotate in the opposite direction than ours, they are not necissarily interchangeable __________________ 1994 Lincoln Towncar w/ 112576 1996 Contour SE MTX loaded w/ 137179 1999 Silver Frost ATX original owner w/ 70500 RUNNING!!!!

02-26-2007, 05:23 PM	#4 (permalink)
J-Man Moderator Join Date: Jun 2004 Posts: 11,713 Images: 5	Re: 65mm TB = throttle hang? All the how-to's that I have read have said to use the SVTC tps. This is interesting to me since I just picked up a 65mm tb off of eBay. __________________ "How a politician stands on the Second Amendment tells you how he or she views you as an individual... as a trustworthy and productive citizen, or as part of an unruly crowd that needs to be lorded over, controlled, supervised, and taken care of." -- Representative Suzanna Gratia Hupp (TX)"

02-26-2007, 05:39 PM	#5 (permalink)
ilovemycar NECO Member Join Date: Oct 2002 Location: Ridgeland, SC Posts: 1,795	Re: 65mm TB = throttle hang? As long as you used the TPS that came on it, or an SVT TPS, you are ok. As far as the throttle hang...it could be a number of things. Did you tighten the spring on the TB. What i mean is does the throttle plate "snap shut" when you let off the throttle? You may have to turn the spring one more time to make it tight. __________________ 99 Cougar, 02 Expedition, 06 xB,

02-26-2007, 05:44 PM	#6 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	Re: 65mm TB = throttle hang? I moved the TB with my intake off via the gas pedal, and my dad watched. There really wasn't anything to speak of, the TB closes promptly. Im sorta confused whats the deal. __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

02-26-2007, 05:50 PM	#7 (permalink)
J-Man Moderator Join Date: Jun 2004 Posts: 11,713 Images: 5	Re: 65mm TB = throttle hang? I would just try wrapping the spring around one more time to see if that helps get it shut even quicker. __________________ "How a politician stands on the Second Amendment tells you how he or she views you as an individual... as a trustworthy and productive citizen, or as part of an unruly crowd that needs to be lorded over, controlled, supervised, and taken care of." -- Representative Suzanna Gratia Hupp (TX)"

02-26-2007, 05:52 PM	#8 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	Re: 65mm TB = throttle hang? I suppose I could try, but its when I let off the gas and clutch in to go into the next gear the revs will rise, then hang. __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

02-26-2007, 06:27 PM	#9 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	Re: 65mm TB = throttle hang? P0122 Throttle Position (TP) sensor circuit low input It threw a CEL. Thats the code that was pulled. Any ideas as to what the problems add up to here? __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

02-26-2007, 07:06 PM	#10 (permalink)
StealthyWeasel NECO Member Join Date: Sep 2005 Posts: 4,123 Images: 5	Re: 65mm TB = throttle hang? IMO the TPS is bad.. I guess I solved my own problem __________________ Currently: 215whp/194wtq runs 14.4@97 The new plan: 04/05 3L, Wrapped WR Headers, WR Y Pipe-->2.5"ss QTP electric dump valve in place of cat, SVT Cams, SS3/Fidanza, 24# Injectors, Dyno Tune, Quaife LSD + B1 Gearset

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