Trouble code p0340 car wont run

99v6stang · January 8th, 2008, 06:03 PM

Okey so while i was driving my car killed and wouldnt start again. A day later it starts but turns over real slow and then wont stay running for very long. It is giving the code p0340 cam position sensor ciruit malfunction. I checked for power in the positive going to the cam position sensor and the test light did not light up. So i believe im not getting power to the sensor? how do i locate what i am losing the power at? I hate this electrical shit

HMUSN · January 8th, 2008, 06:11 PM

replace the sensor dude.

2000ranger · January 8th, 2008, 06:14 PM

2000 Mustang Workshop Reference
try this site, it has a couple wiring diagrams
it mite be the same fo a 99

itschristorres8 · January 8th, 2008, 06:38 PM

try hooking up a test light to see if your getting the power there
if u do replace it

99v6stang · January 8th, 2008, 06:54 PM

I did, and im not getting power on the wire going to the sensor, what i didnt know is when is the sensor powered? Is it only while the car is running im assuming? When i run the car it stays running but sounds absolutely terrible so im afraid to run it. Also i didnt know how much power the light needs to light up, if the sensor wire provides enough power? or could i unhook the sensor and try starting the car with the tester in the eng of the connector?

itschristorres8 · January 8th, 2008, 07:14 PM

well there has to be power going to it
try just replacing the sensor and see if it works have you gotten a cam for your set up

99v6stang · January 8th, 2008, 07:14 PM

It seems like the new gts have this problem caused by the alternator but it doesnt say anything about the new edges, or a v6, and also it seems like some people say it could be because of the spark plug wires, but i just have napa premium wires, and ive had them for 3000 miles with no problem, i did get my underdrive pulley about 2 or three weeks ago and maybe that caused a prob with the alternator?? But it was all fine untill now.

99v6stang · January 8th, 2008, 07:15 PM

yea i got an aftermarket cam but it has worked fine for two months

99v6stang · January 8th, 2008, 07:16 PM

why does there have to be power going to it? isnt it possible that there is a short somewhere and that is the problem?

tsp_2177 · January 8th, 2008, 07:23 PM

what goods a sensor if theres not power going to it? *confused*

99v6stang · January 8th, 2008, 07:27 PM

oh sorry i sort of worded that wrong, i know there has to be power to it for it to work, but its not working so i was asking if it was possible that power wasnt getting to it, i took christorres's statement as saying that there was power going to it, not that it needed to have power to operate.

tsp_2177 · January 8th, 2008, 07:29 PM

yeah i think i took his statement wrong, or at least i thought sensors had power going to them...

itschristorres8 · January 8th, 2008, 11:16 PM

Originally Posted by 99v6stang

why does there have to be power going to it? isnt it possible that there is a short somewhere and that is the problem?

umm how do you expect to see if power is going to the sensor?
it is possible theres a short but more LIKELY its the sensor

edit:
reading the other post i'd still say its the sensor
its doubtful there is a short to it. thats more rare then the sensor
not to mention its generally easier to just replace the sensor then finding and repairing the short
i personally hate most electronic BS

the sensor is like $20 i think..

supermachone · January 9th, 2008, 12:54 AM

dude just change the sensor, if that doesnt work start from there

jacutis · January 9th, 2008, 10:34 AM

is there a simular electrical diagram site for the 2005+ V6 anywhere?

Juggalo_X · January 9th, 2008, 10:38 AM

Originally Posted by jacutis

is there a simular electrical diagram site for the 2005+ V6 anywhere?

wish i could help yah but i only got schematics for 94-04

try seeing if your local auto parts store has a Haynes manual of 05+ mustangs for you. its a god send really.

shadow5403 · January 9th, 2008, 10:56 AM

Haynes Repair Manuals

Owning a haynes manual is one of the best things you can purchase for your car if yur a DIY

jacutis · January 9th, 2008, 11:55 AM

tru.

itschristorres8 · January 9th, 2008, 03:09 PM

honestly i dont see why you asked us for help if you doing everything but what we've suggested

99v6stang · January 9th, 2008, 07:42 PM

im getting the sensor, and i appreciate your help i just dont have money to waste if its not something i truely need. And when you said it is unlikely that it is the sensor, well when i dropped in this engine i had to splice in a new connection from a different wiring harness because the wires pulled out of the coonector, so i think it is very likely that its the wires to the sensor. Also i am checking it with a test light where you hook one wire to a ground and touch the tool to the positive wire and if it lights up there is power, this is a very common proceedure for testing electrical stuff.

January 8th, 2008, 06:03 PM	#1
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	Trouble code p0340 car wont run Okey so while i was driving my car killed and wouldnt start again. A day later it starts but turns over real slow and then wont stay running for very long. It is giving the code p0340 cam position sensor ciruit malfunction. I checked for power in the positive going to the cam position sensor and the test light did not light up. So i believe im not getting power to the sensor? how do i locate what i am losing the power at? I hate this electrical shit __________________ My car ---- (m112 in progress)

January 8th, 2008, 06:11 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	replace the sensor dude. __________________

January 8th, 2008, 06:38 PM	#4
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	try hooking up a test light to see if your getting the power there if u do replace it __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 8th, 2008, 06:54 PM	#5
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	I did, and im not getting power on the wire going to the sensor, what i didnt know is when is the sensor powered? Is it only while the car is running im assuming? When i run the car it stays running but sounds absolutely terrible so im afraid to run it. Also i didnt know how much power the light needs to light up, if the sensor wire provides enough power? or could i unhook the sensor and try starting the car with the tester in the eng of the connector? __________________ My car ---- (m112 in progress)

January 8th, 2008, 07:14 PM	#6
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	well there has to be power going to it try just replacing the sensor and see if it works have you gotten a cam for your set up __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 8th, 2008, 06:14 PM	#3
2000ranger Editor 1972 Dodge Dart under restoration (will we ever stop buying stuff that needs work?) Join Date: Mar 2007 Location: k.dot Wisconsin Posts: 298 iTrader: 0 reviews	2000 Mustang Workshop Reference try this site, it has a couple wiring diagrams it mite be the same fo a 99

January 8th, 2008, 07:15 PM	#8
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	yea i got an aftermarket cam but it has worked fine for two months __________________ My car ---- (m112 in progress)

January 8th, 2008, 07:16 PM	#9
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	why does there have to be power going to it? isnt it possible that there is a short somewhere and that is the problem? __________________ My car ---- (m112 in progress)

January 8th, 2008, 07:23 PM	#10
tsp_2177 Hardcore Enthusiast 2005 Civic GAY! Join Date: Mar 2007 Location: Alabama Posts: 1,868 iTrader: 0 reviews	what goods a sensor if theres not power going to it? confused __________________ slow car member twinky times two the stangs gone pypes mid muffler catback with their X-pipe In the top 20 cool peoples list on MM potsticker in training

January 8th, 2008, 07:27 PM	#11
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	oh sorry i sort of worded that wrong, i know there has to be power to it for it to work, but its not working so i was asking if it was possible that power wasnt getting to it, i took christorres's statement as saying that there was power going to it, not that it needed to have power to operate. __________________ My car ---- (m112 in progress)

January 8th, 2008, 07:29 PM	#12
tsp_2177 Hardcore Enthusiast 2005 Civic GAY! Join Date: Mar 2007 Location: Alabama Posts: 1,868 iTrader: 0 reviews	yeah i think i took his statement wrong, or at least i thought sensors had power going to them... __________________ slow car member twinky times two the stangs gone pypes mid muffler catback with their X-pipe In the top 20 cool peoples list on MM potsticker in training

January 9th, 2008, 12:54 AM	#14
supermachone Shake N' Bake 1984 Corvette Kessel Run @ Less Than 12 Parsecs Join Date: Sep 2007 Location: Kansas Posts: 5,090 iTrader: 2 reviews	dude just change the sensor, if that doesnt work start from there __________________ BONER CREW EMPLOYEE - PACKAGE INSPECTOR #1

January 9th, 2008, 10:34 AM	#15
jacutis Regular 2007 V6 Coupe unknown Join Date: Jan 2008 Location: Dallas, TX Posts: 50 iTrader: 0 reviews	is there a simular electrical diagram site for the 2005+ V6 anywhere?

January 9th, 2008, 10:56 AM	#17
shadow5403 Hardcore Enthusiast Join Date: Oct 2007 Location: PA Posts: 2,037 iTrader: 0 reviews	Haynes Repair Manuals Owning a haynes manual is one of the best things you can purchase for your car if yur a DIY __________________

January 9th, 2008, 11:55 AM	#18
jacutis Regular 2007 V6 Coupe unknown Join Date: Jan 2008 Location: Dallas, TX Posts: 50 iTrader: 0 reviews	tru.

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January 9th, 2008, 03:09 PM	#19
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	honestly i dont see why you asked us for help if you doing everything but what we've suggested __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 9th, 2008, 07:42 PM	#20
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	im getting the sensor, and i appreciate your help i just dont have money to waste if its not something i truely need. And when you said it is unlikely that it is the sensor, well when i dropped in this engine i had to splice in a new connection from a different wiring harness because the wires pulled out of the coonector, so i think it is very likely that its the wires to the sensor. Also i am checking it with a test light where you hook one wire to a ground and touch the tool to the positive wire and if it lights up there is power, this is a very common proceedure for testing electrical stuff. __________________ My car ---- (m112 in progress)

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