problem, sputtering, starving. need help!!

burnout5.0 · September 20th, 2008, 12:24 AM

i have been working on my friends 2001 V-6 auto for a couple days now and it wasn't running as of last night until i replaced the alternator, battery and camshaft position sensor. the car runs and drives now but not well. the problem is that when normally accelerating it sputters and has absolutely no power. the car is not showing a check engine light at all but when you hammer on it, it sputters and chokes and then the check engine light starts to flash for a short time then the light turns off when you drive it easy again. just wanted to kno if anyone had any ideas or could possibly tell me whats wrong with this poor thing.

Thanks.

StangAddiction · September 20th, 2008, 12:27 AM

I doubt it's the alternator or battery unless the volt meter is reading low. Im guessing it's something with the CPS or CPS circuit. That would definitely do it, but at the same time, you should always troubleshoot everything

bwoody1713 · September 20th, 2008, 01:00 AM

Last I checked when the CEL starts flashing that means the motor is misfiring. Check your plugs and COPs. One of them may have gone bad. Probably a COP, that's what mine turned out to be.

dude496 · September 20th, 2008, 01:40 AM

even though the CEL may not be constantly on, the PCM might still be saving a code. Try and pull the code, and see if anything shows up.

dude496 · September 20th, 2008, 01:43 AM

One other thing...the crank position sensor is in circuit with the cam position sensor (they work hand in hand).

Personally i'd lean more towards the sensor vs. the COP since the car is stalling out...the car will run on 5 out of 6 cylinders, it'll run rough, but it will still run. Now if you have multiple COP's bad, then yeah it will cause that problem. If the crank position sensor is bad, it will definatly cause your problems. Then again, i'm not sure if the v-6 uses a crank position sensor.

KevinJ99GT · September 20th, 2008, 10:31 AM

I think its bad COP to i had to replace mine about 2 weeks ago because it did that, but never got a check engine light.

burnout5.0 · September 20th, 2008, 10:53 AM

Thanks guys for all the input but whats a COP?

dude496 · September 20th, 2008, 11:13 AM

Coil over plug.

You probably should be asking in the v-6 section...not sure if the 01 v-6 used COPs or still used a distributor pack.

Cricket · September 20th, 2008, 11:43 AM

sixxers don't have COPs.

check plugs, wires, and coil packs. If that isn't it go to another section of the motor. The fact it isn't throwing a code is weird. So I would just start with those.

burnout5.0 · September 20th, 2008, 12:48 PM

i just drove it today its now throwing a CEL too

Shibby50 · September 20th, 2008, 12:51 PM

a bad catalytic converter can cause the sputtering and such at high rpm's

JBird · February 26th, 2009, 01:32 PM

whose car is this chris's?

September 20th, 2008, 12:24 AM	#1
burnout5.0 Regular 2004 Mustang SVT Cobra 448whp/475wtq Join Date: Nov 2006 Location: Connecticut Posts: 368 iTrader: 0 reviews	problem, sputtering, starving. need help!! i have been working on my friends 2001 V-6 auto for a couple days now and it wasn't running as of last night until i replaced the alternator, battery and camshaft position sensor. the car runs and drives now but not well. the problem is that when normally accelerating it sputters and has absolutely no power. the car is not showing a check engine light at all but when you hammer on it, it sputters and chokes and then the check engine light starts to flash for a short time then the light turns off when you drive it easy again. just wanted to kno if anyone had any ideas or could possibly tell me whats wrong with this poor thing. Thanks.

September 20th, 2008, 12:27 AM	#2
StangAddiction Enthusiast 2000 Mustang GT Join Date: Jan 2007 Location: Virginia Beach Posts: 986 iTrader: 0 reviews	I doubt it's the alternator or battery unless the volt meter is reading low. Im guessing it's something with the CPS or CPS circuit. That would definitely do it, but at the same time, you should always troubleshoot everything __________________ "peak hp doesn't mean ish... Its about the area under the curve mannn..."

September 20th, 2008, 10:31 AM	#6
KevinJ99GT Enthusiast 1999 Mustang GT 8.30 1/8th mile Join Date: Jun 2008 Location: Walnut Ridge, Arkansas Posts: 866 iTrader: 0 reviews	I think its bad COP to i had to replace mine about 2 weeks ago because it did that, but never got a check engine light. __________________ - full bolt on's, hitech stage 2's, zex 100 shot

September 20th, 2008, 12:51 PM	#11
Shibby50 Regular 2000 Mustang GT - Join Date: May 2008 Location: Joliet IL Posts: 161 iTrader: 2 reviews	a bad catalytic converter can cause the sputtering and such at high rpm's __________________ 2000 GT Convertible Wrecked 2001 Trans Am

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September 20th, 2008, 01:00 AM	#3
bwoody1713 Regular 2000 Mustang GT Still too slow Join Date: Jul 2008 Location: Campbell Hall,NY Posts: 345 iTrader: 0 reviews	Last I checked when the CEL starts flashing that means the motor is misfiring. Check your plugs and COPs. One of them may have gone bad. Probably a COP, that's what mine turned out to be.

September 20th, 2008, 01:40 AM	#4
dude496 Hardcore Enthusiast 04 Mustang GT Join Date: May 2007 Location: somewhere Posts: 1,371 iTrader: 2 reviews	even though the CEL may not be constantly on, the PCM might still be saving a code. Try and pull the code, and see if anything shows up.

September 20th, 2008, 01:43 AM	#5
dude496 Hardcore Enthusiast 04 Mustang GT Join Date: May 2007 Location: somewhere Posts: 1,371 iTrader: 2 reviews	One other thing...the crank position sensor is in circuit with the cam position sensor (they work hand in hand). Personally i'd lean more towards the sensor vs. the COP since the car is stalling out...the car will run on 5 out of 6 cylinders, it'll run rough, but it will still run. Now if you have multiple COP's bad, then yeah it will cause that problem. If the crank position sensor is bad, it will definatly cause your problems. Then again, i'm not sure if the v-6 uses a crank position sensor.

September 20th, 2008, 10:53 AM	#7
burnout5.0 Regular 2004 Mustang SVT Cobra 448whp/475wtq Join Date: Nov 2006 Location: Connecticut Posts: 368 iTrader: 0 reviews	Thanks guys for all the input but whats a COP?

September 20th, 2008, 11:13 AM	#8
dude496 Hardcore Enthusiast 04 Mustang GT Join Date: May 2007 Location: somewhere Posts: 1,371 iTrader: 2 reviews	Coil over plug. You probably should be asking in the v-6 section...not sure if the 01 v-6 used COPs or still used a distributor pack.

September 20th, 2008, 12:48 PM	#10
burnout5.0 Regular 2004 Mustang SVT Cobra 448whp/475wtq Join Date: Nov 2006 Location: Connecticut Posts: 368 iTrader: 0 reviews	i just drove it today its now throwing a CEL too

February 26th, 2009, 01:32 PM	#12
JBird Newbie Join Date: Feb 2009 Posts: 15 iTrader: 0 reviews	whose car is this chris's?

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