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Old 03-11-2011, 09:13 PM   #1
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Lag in Acceleration/Throttle Response

I have a 2006 Ford Mustang GT. The issue that I am having with it is at low speed there seems to be a lag in the acceleration. When I press down on the gas pedal it seems to take a few seconds for the throttle to respond. I have heard that this is a known issue. My question is there a solution to this issue?
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Old 03-11-2011, 10:15 PM   #2
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That's normal. You can't really do much unless you get a tuner which will help the response and a throttle body will help it as well.
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Old 03-11-2011, 11:29 PM   #3
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Re: Lag in Acceleration/Throttle Response

Its throttle lag and they all have it.Dont worry its normal but if you get a SCT handheld tuner......problem solved.The tuners work great for these cars and really wake them up when combined with a cold air intake.
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Old 03-12-2011, 10:07 AM   #4
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Re: Lag in Acceleration/Throttle Response

Thanks for the information. I'll look into it.
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Old 03-12-2011, 12:07 PM   #5
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Re: Lag in Acceleration/Throttle Response

I have an 05 GT and had SCT tune and it really fixed that problem with throttle lag.
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Old 03-12-2011, 12:10 PM   #6
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Quote:
Originally Posted by 4.6Guy
I have an 05 GT and had SCT tune and it really fixed that problem with throttle lag.
Ya but with a tuner it still lags a little bit. It's not like right away.
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Old 03-12-2011, 04:32 PM   #7
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Re: Lag in Acceleration/Throttle Response

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Ya but with a tuner it still lags a little bit. It's not like right away.
Not if you run the race tune......
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Old 03-12-2011, 04:35 PM   #8
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I run the race tune and mine still has a slight bit of lag but not like when it was stock.
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Old 03-12-2011, 04:37 PM   #9
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Re: Lag in Acceleration/Throttle Response

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I run the race tune and mine still has a slight bit of lag but not like when it was stock.

You are caaaaaraaaaaazy,lol. What other mods are you running?
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Old 03-12-2011, 04:41 PM   #10
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Just a race tune with CAI and axel back exhaust.
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Old 03-12-2011, 05:23 PM   #11
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Re: Lag in Acceleration/Throttle Response

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Just a race tune with CAI and axel back exhaust.
Sounds like the same setup I have on my 07 - no lag at all.
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Old 03-12-2011, 07:29 PM   #12
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Re: Lag in Acceleration/Throttle Response

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Sounds like the same setup I have on my 07 - no lag at all.
Same tune I had on my 07 But with the addition of a CAI, Kooks LTs, catted H, axelbacks and FRPP 4.10s.The throttle response I had feels far better than my 2011 5.0,the 5.0 is a tad soft down low even with a 93 race tune and 3.73s.
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Old 03-12-2011, 08:34 PM   #13
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Damn it must have been pretty quick
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Old 03-12-2011, 09:32 PM   #14
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Re: Lag in Acceleration/Throttle Response

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Damn it must have been pretty quick

It was only 300whp but just had that down low torque that would snap your head into the back of the seat.The 2011 is a beast up top though.Im thinking of doing 4.10s in the 2011
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Old 03-13-2011, 10:05 PM   #15
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Re: Lag in Acceleration/Throttle Response

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I have a 2006 Ford Mustang GT. The issue that I am having with it is at low speed there seems to be a lag in the acceleration. When I press down on the gas pedal it seems to take a few seconds for the throttle to respond. I have heard that this is a known issue. My question is there a solution to this issue?
My solution is...depress clutch, select lower gear, release clutch, FLOOR IT LOL J/K
But, it works for me, until I get CAI/Tuner/Exhaust. Of course it will still work after I get the mods, only the results will be more dramatic.
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Old 03-14-2011, 08:32 AM   #16
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Re: Lag in Acceleration/Throttle Response

a tune will change how the car accelerates (it modifies the input from the accel petal and changes how it opens the TB vs stock makes a big difference in driving)
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Old 03-14-2011, 09:15 AM   #17
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Re: Lag in Acceleration/Throttle Response

sure do miss throttle cables !!!!
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Old 03-14-2011, 04:11 PM   #18
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How many miles. My 2v lagged when I bought it but seafoam cured that

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Old 03-14-2011, 04:20 PM   #19
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Re: Lag in Acceleration/Throttle Response

SCT Tuner FTW! Even with the stick shift it got rid of the throttle lag on mine too! Id run 93 race full time if it wasnt so damn expensive!
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Old 03-14-2011, 04:26 PM   #20
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SCT Tuner FTW! Even with the stick shift it got rid of the throttle lag on mine too! Id run 93 race full time if it wasnt so damn expensive!
Ya...ditto. My 5 speed 2v felt like a new car after I loaded up a 91 octane tune

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Old 03-14-2011, 04:35 PM   #21
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I still get a very little slight lag after the 91 race tune. Is that normal because people are saying there really shouldn't be any lag at all.
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Old 03-14-2011, 04:40 PM   #22
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I still get a very little slight lag after the 91 race tune. Is that normal because people are saying there really shouldn't be any lag at all.
Shouldn't be any. My 2v doesn't lag at all. How many miles on on yours and what motor is it. Nevermind it's a 3v or is it a sixxer. You may need a seafoam treatment. It's cheap. Maybe just do it anyway. How many miles on your plugs. They might be shot

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Old 03-14-2011, 04:42 PM   #23
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40,000 and it's an 06 GT 3v
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Old 03-14-2011, 04:59 PM   #24
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40,000 and it's an 06 GT 3v
Well the plugs should still be ok. Try seafoam. It's cheap and if it doesn't work it didn't cost alot. If you have used synthetic oil since new it should be clean inside. Just do fuel and intake

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Old 03-14-2011, 05:13 PM   #25
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Ive used synthetic the second time I changed the oil and have used it ever since. How does the seafoam work?
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Old 03-14-2011, 07:25 PM   #26
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Re: Lag in Acceleration/Throttle Response

Stang23....why dont you get another drivers opinion,maybe its just you.I have seriously never heard anyone talk about or read a thread about still having throttle lag after loading a new tune......thats weird.
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Old 03-14-2011, 07:53 PM   #27
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Ive used synthetic the second time I changed the oil and have used it ever since. How does the seafoam work?
I would have to agree with DDT. I also have never heard of lag after a new tune was flashed. Unless there is so much carbon build up that it's causing the lag but after only 40k I really doubt it's build up. Seafoam cleans fuel system,intake and crankcase. It goes into the oil,gas and into a vacuum line to dissolve carbon and build up

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Old 03-14-2011, 10:13 PM   #28
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Re: Lag in Acceleration/Throttle Response

I had the same problem. I thought it was me so I had the computer cleared, before doing re-search.
The newer Mustang's 05+ have an electronically controlled throttle (ETC), common names are, fly-by-wire, drive by wire.

Basically an SCT tuner will help you get max performance out the car. It adjusts the computers brain to say, you need to this at this time. There will always be a slight delay in any ETC car .vs. the old throttle cable's. Go with the tune it will make a huge difference.
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Old 03-14-2011, 10:22 PM   #29
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Ive used synthetic the second time I changed the oil and have used it ever since. How does the seafoam work?
K well the crankcase should be clean. Unless you were using mobil 1. Then it might be a little iffy. What's your climate like and driving style. The reason I ask is because if you like to spend alot of time above 3000 rpms and you are in a hot climate(no winter) you may have developed some sludge. Which will cause lazy valves and sluggish acceleration. Start with a seafoam treatment and then you can eliminate a dirty motor from the equation

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Old 03-15-2011, 11:10 PM   #30
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I had a pretty bad throttle lag in my 06 gt I tried a lot of things and nothing worked but I came across a thread that said something about cleaning the throttle body so I got CDC throttle body cleaner took of the throttle cleaned it replaced the gasket and got some mass air flow sensor cleaner and cleaned that as well and that completely fixed the problem there is no lag at all I can just barely touch the pedal and take off. You should give that a shot.
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Old 03-15-2011, 11:35 PM   #31
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Ok I'll give that a try
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Old 03-16-2011, 12:07 AM   #32
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I had a pretty bad throttle lag in my 06 gt I tried a lot of things and nothing worked but I came across a thread that said something about cleaning the throttle body so I got CDC throttle body cleaner took of the throttle cleaned it replaced the gasket and got some mass air flow sensor cleaner and cleaned that as well and that completely fixed the problem there is no lag at all I can just barely touch the pedal and take off. You should give that a shot.
Seafoam cleans just as this stuff does

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Old 03-30-2011, 09:17 AM   #33
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Well I think I have a solution for you. My 05 was doing the same thing and yes I have a race tune on it. I took it to my buddies ford dealership were he is a manager and he had his mechanics look my car over with a fine tooth comb. What we discovered was it had nothing to do with the tune or how dirty the throttle body was. What it end up being was that little black modulator that connects on to the side of the throttle body was bad and wasn't opening up the blades inside the TB properly. Now the bad news is ford does not just sell the modulator by it self. They sell the throttle body with it. And if you buy an aftermarket TB ie bbk they don't come with the modulator. Hope this helps.
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Old 03-30-2011, 10:13 AM   #34
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Re: Lag in Acceleration/Throttle Response

my 2006 mustang has a tune and supercharger and my throttle seems to stick alittle on take off but when i'm driving it's fine and i too miss the cables it was a lot easier
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Old 03-30-2011, 10:59 AM   #35
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Well I think I have a solution for you. My 05 was doing the same thing and yes I have a race tune on it. I took it to my buddies ford dealership were he is a manager and he had his mechanics look my car over with a fine tooth comb. What we discovered was it had nothing to do with the tune or how dirty the throttle body was. What it end up being was that little black modulator that connects on to the side of the throttle body was bad and wasn't opening up the blades inside the TB properly. Now the bad news is ford does not just sell the modulator by it self. They sell the throttle body with it. And if you buy an aftermarket TB ie bbk they don't come with the modulator. Hope this helps.
Idk if It could be that. The engine only has 40,000 miles on it. I'm getting a new tb soon so after that I'll see what it's like.
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