Tune Help

vastang757 · November 2nd, 2009, 07:05 PM

Ok guys & girls, I just got done installing my JLT intake and loading my custom tune from Brenspeed. I gotta say, the car drives like a beast. I love it. Its like a totally different car... but when I push the clutch in when I'm coming to a stop my RPMs drop to 500, bounce to 700, drop back to 500 then go up and hold at 1000. I'm calling Brenspeed in the morning to see what they say. But since I'm impatient I wanted to know if any of you have had this issue

Grabber523 · November 2nd, 2009, 07:10 PM

Check for vaccuum leaks.

06RedfireGT · November 2nd, 2009, 07:11 PM

+1

Make sure all the clamps are tight, and there is a good seal around the throttle body and where the filter attaches to the intake tube.

vastang757 · November 2nd, 2009, 07:15 PM

Already thought of that and everything is tight

Grabber523 · November 2nd, 2009, 07:33 PM

The only way to know for sure is the smoke test...you'd be amazed at what even spraying carb cleaner looking for leaks can miss...it's not the tune. It's something mechanical.

vastang757 · November 2nd, 2009, 07:34 PM

Dammit. Guess I'm dragging out the halogen and throwing on a hoodie...

Anthony05GT · November 2nd, 2009, 07:36 PM

I've seen that exact problem in the tune before.

vastang757 · November 2nd, 2009, 07:38 PM

Thats not what I want to hear

Grabber523 · November 2nd, 2009, 07:41 PM

You can tune around problems, but once the problem is fixed, the tune will be off. The tune you have was made for a car with no vaccuum leaks. Trust me, I had my KB car apart 3 times inspecting everything, checking for cracked hoses, using zip ties on all tees, spraing carb cleaner around every line and component and never found a leak. Took it to StangHi, and he was able to find vaccuum and fuel leaks that I never saw. Got a datalogger? What are your STFT and LTFTs at?

Ace417 · November 2nd, 2009, 07:55 PM

cars still slow

NastyFX4 · November 2nd, 2009, 07:58 PM

What's the idle set at? Try bumping it up slightly.

vastang757 · November 2nd, 2009, 08:13 PM

Originally Posted by Grabber523

You can tune around problems, but once the problem is fixed, the tune will be off. The tune you have was made for a car with no vaccuum leaks. Trust me, I had my KB car apart 3 times inspecting everything, checking for cracked hoses, using zip ties on all tees, spraing carb cleaner around every line and component and never found a leak. Took it to StangHi, and he was able to find vaccuum and fuel leaks that I never saw. Got a datalogger? What are your STFT and LTFTs at?

I just used the X3 to datalog. I'll check those tomorrow (what are those??)

Originally Posted by Ace417

cars still slow

Its faster than yours

Originally Posted by NastyStang113

What's the idle set at? Try bumping it up slightly.

Looked like 848

NastyFX4 · November 2nd, 2009, 08:20 PM

The idle can't be set at 848 in the handheld. Go look at what the handheld says and than post it.

vastang757 · November 2nd, 2009, 08:23 PM

If thats under the strategic tune part I can't. Says that thats not supported

Ace417 · November 2nd, 2009, 08:25 PM

in the datalog mode you can view the idle

at least mine runs

vastang757 · November 2nd, 2009, 08:26 PM

Yeah, and it said it was 848

NastyFX4 · November 2nd, 2009, 08:41 PM

Go like you're going to reload the tune, than click user adjustment options, or adjust tune, make changes, whatever it says, than check the idle speed in neutral and in gear.

vastang757 · November 2nd, 2009, 08:46 PM

Ok, its set to 850

vastang757 · November 3rd, 2009, 08:02 AM

Anthony05GT · November 3rd, 2009, 08:26 AM

850 should be fine. When was the last time the throttle body and MAF were cleaned?

November 2nd, 2009, 07:05 PM	#1
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Tune Help Ok guys & girls, I just got done installing my JLT intake and loading my custom tune from Brenspeed. I gotta say, the car drives like a beast. I love it. Its like a totally different car... but when I push the clutch in when I'm coming to a stop my RPMs drop to 500, bounce to 700, drop back to 500 then go up and hold at 1000. I'm calling Brenspeed in the morning to see what they say. But since I'm impatient I wanted to know if any of you have had this issue __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 07:10 PM	#2
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	Check for vaccuum leaks. __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

November 2nd, 2009, 07:11 PM	#3
06RedfireGT One Man Wolf Pack 2006 Mustang GT 13ish....maybe Join Date: Aug 2006 Location: Regulatin On Some OGs Posts: 22,484 iTrader: 2 reviews	+1 Make sure all the clamps are tight, and there is a good seal around the throttle body and where the filter attaches to the intake tube. __________________ ΜΟΛΩΝ ΛΑΒΕ

November 2nd, 2009, 07:15 PM	#4
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Already thought of that and everything is tight __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 07:33 PM	#5
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	The only way to know for sure is the smoke test...you'd be amazed at what even spraying carb cleaner looking for leaks can miss...it's not the tune. It's something mechanical. __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

November 2nd, 2009, 07:34 PM	#6
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Dammit. Guess I'm dragging out the halogen and throwing on a hoodie... __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 07:36 PM	#7
Anthony05GT Hardcore Enthusiast Join Date: Feb 2009 Posts: 1,462 iTrader: 1 reviews	I've seen that exact problem in the tune before. __________________ JDM 302 Stroker, Whipple 10 rib 12 psi, L&M, JBA, J&M, LFP, Corsa, BBR Stage II cams, Manley, MGW, McLeod RST, Metco, Steeda, Autometer, CDC, Street Scene, SOS, Tuned at JPC Racing by Kevin MacDonald

November 2nd, 2009, 07:38 PM	#8
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Thats not what I want to hear __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 07:41 PM	#9
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	You can tune around problems, but once the problem is fixed, the tune will be off. The tune you have was made for a car with no vaccuum leaks. Trust me, I had my KB car apart 3 times inspecting everything, checking for cracked hoses, using zip ties on all tees, spraing carb cleaner around every line and component and never found a leak. Took it to StangHi, and he was able to find vaccuum and fuel leaks that I never saw. Got a datalogger? What are your STFT and LTFTs at? __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

November 2nd, 2009, 07:58 PM	#11
NastyFX4 Made in U.S.A. 2011 F150 FX4 Join Date: Jan 2009 Location: Florida Posts: 16,010 iTrader: 9 reviews	What's the idle set at? Try bumping it up slightly. __________________

November 2nd, 2009, 08:20 PM	#13
NastyFX4 Made in U.S.A. 2011 F150 FX4 Join Date: Jan 2009 Location: Florida Posts: 16,010 iTrader: 9 reviews	The idle can't be set at 848 in the handheld. Go look at what the handheld says and than post it. __________________

November 2nd, 2009, 08:23 PM	#14
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	If thats under the strategic tune part I can't. Says that thats not supported __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 08:26 PM	#16
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Yeah, and it said it was 848 __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 2nd, 2009, 08:41 PM	#17
NastyFX4 Made in U.S.A. 2011 F150 FX4 Join Date: Jan 2009 Location: Florida Posts: 16,010 iTrader: 9 reviews	Go like you're going to reload the tune, than click user adjustment options, or adjust tune, make changes, whatever it says, than check the idle speed in neutral and in gear. __________________

November 2nd, 2009, 08:46 PM	#18
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	Ok, its set to 850 __________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 3rd, 2009, 08:02 AM	#19
vastang757 MM's Resident Muffler Shop 2007 Mustang GT the speed of slow Join Date: Feb 2009 Location: Newport News, Virginia Posts: 3,067 iTrader: 0 reviews	__________________ Meine Garage MAD Stangs #9 Olivia Munn FTW Crew Founder commandersafi (10:54:49 PM): i love how much veiny sticks out

November 3rd, 2009, 08:26 AM	#20
Anthony05GT Hardcore Enthusiast Join Date: Feb 2009 Posts: 1,462 iTrader: 1 reviews	850 should be fine. When was the last time the throttle body and MAF were cleaned? __________________ JDM 302 Stroker, Whipple 10 rib 12 psi, L&M, JBA, J&M, LFP, Corsa, BBR Stage II cams, Manley, MGW, McLeod RST, Metco, Steeda, Autometer, CDC, Street Scene, SOS, Tuned at JPC Racing by Kevin MacDonald

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