2002 mustang gt 4.6 Problem
Problem first noticed after i installed MSD ignition about 6 months ago. (not sure if this is the problem though)
Right after MSD installation the car would "sputter" i guess this is the best way to describe it. An example of the "sputter" would be driving your car at 10 mph and quickly tapping the accelerator multiple times a second and having the car jerk back and forth. it really pisses me off...
I had stock spark plugs so i switched to brisk and problem went away.. Now here is where it gets weird...
It is unknown to me when this issue started back again but i would start my car in the morning and the car would idle fine for a minute, then idle rough & then turn itself off ( if i try to give it gas when its about to die it "sputters").
I am not sure if this is relevant or not but once temperature climbes a bit the car is able to keep a steady idle but when i drive it it will "sputter" on the road for about 3 minutes or until temperature gets to normal driving and then the issue goes away like magic or something. Then the car is great for the rest of the day until morning....
Get this, I can leave my car parked at work for up to 10 hours in the day and when i get off of work and drive her home there is no problem.. yet EVER morning the problem comes back. It is like I am in a mustang groundhog day!
It makes no sesse at all. sometimes i can get home at 12 oclock at night.. park her in the garage and then when i wake up 6 hours later the problem is there EVERY morning. yet when i drive to work and let it sit for 10 hours, then drive her home fine.
I replaced MAF, checked all vacume lines, replaced CAI and i have yet to fix the problem... I do have an exhaust leak though...
I have 91 octaine tune by breenspeed on my car using the SCT livewire. Have tried getting gas from multiple places, took the car back to stock from the tune.. it just will NOT go away.
when i change my oil i always change fuel filter and recharge CAI. I went as far as to buy a red-top battery to pray this somehow fixed my issue. And help would be extremely appreciated.
MY buddies are pretty mechanically inclined, they put 5.0's in trucks, build motors, install their own gears and they have no idea and blame it on being a modular lol. If someone can help me i may just buy you a small mod for your car or something...
I am headed to the garage to pop open my hood, smoke allot of cigs and get nothing accomplished.
Current Mods:
Drivetrain
-Steeda Tri-Ax Shifter
-FRPP 3.73 gears -
-FRPP Aluminum Drive Shaft
Performance
-JLT CAI
-Accufab Plenum
-Accufab 75mm TB
-Steeda UD Pulleys
-Steeda Timing Adjuster
-MAC Long Tube Headers
-MAC Pro Chamber
-MAC Cat Back
-MSD Coil Packs
-Brisk Plugs
-SCT LiveWire
-Tuned by BreenSpeed
Other
Red Top Battery
-Nitto NT555 245/40-18 up front
-Nitto NT555 285/35-18 out back
Problem first noticed after i installed MSD ignition about 6 months ago. (not sure if this is the problem though)
Right after MSD installation the car would "sputter" i guess this is the best way to describe it. An example of the "sputter" would be driving your car at 10 mph and quickly tapping the accelerator multiple times a second and having the car jerk back and forth. it really pisses me off...
I had stock spark plugs so i switched to brisk and problem went away.. Now here is where it gets weird...
It is unknown to me when this issue started back again but i would start my car in the morning and the car would idle fine for a minute, then idle rough & then turn itself off ( if i try to give it gas when its about to die it "sputters").
I am not sure if this is relevant or not but once temperature climbes a bit the car is able to keep a steady idle but when i drive it it will "sputter" on the road for about 3 minutes or until temperature gets to normal driving and then the issue goes away like magic or something. Then the car is great for the rest of the day until morning....
Get this, I can leave my car parked at work for up to 10 hours in the day and when i get off of work and drive her home there is no problem.. yet EVER morning the problem comes back. It is like I am in a mustang groundhog day!
It makes no sesse at all. sometimes i can get home at 12 oclock at night.. park her in the garage and then when i wake up 6 hours later the problem is there EVERY morning. yet when i drive to work and let it sit for 10 hours, then drive her home fine.
I replaced MAF, checked all vacume lines, replaced CAI and i have yet to fix the problem... I do have an exhaust leak though...
I have 91 octaine tune by breenspeed on my car using the SCT livewire. Have tried getting gas from multiple places, took the car back to stock from the tune.. it just will NOT go away.
when i change my oil i always change fuel filter and recharge CAI. I went as far as to buy a red-top battery to pray this somehow fixed my issue. And help would be extremely appreciated.
MY buddies are pretty mechanically inclined, they put 5.0's in trucks, build motors, install their own gears and they have no idea and blame it on being a modular lol. If someone can help me i may just buy you a small mod for your car or something...
I am headed to the garage to pop open my hood, smoke allot of cigs and get nothing accomplished.
Current Mods:
Drivetrain
-Steeda Tri-Ax Shifter
-FRPP 3.73 gears -
-FRPP Aluminum Drive Shaft
Performance
-JLT CAI
-Accufab Plenum
-Accufab 75mm TB
-Steeda UD Pulleys
-Steeda Timing Adjuster
-MAC Long Tube Headers
-MAC Pro Chamber
-MAC Cat Back
-MSD Coil Packs
-Brisk Plugs
-SCT LiveWire
-Tuned by BreenSpeed
Other
Red Top Battery
-Nitto NT555 245/40-18 up front
-Nitto NT555 285/35-18 out back