2003 Mustang Gt throwing P0340 Code

Steed · 12-31-2008, 12:54 PM

Hello Everyone,

I am new to this forum. I have recently had an issue with my car throwing a P0340 code. I first noticed the issue when I started up my car and quickly died after starting twice! I got it running and returned home and noticed a funny smell and a low whine from the engine. I replaced the Camshaft Position Sensor and it continued to backfire or burp upon start up. Next I disconnected the battery terminals for 10 minutes and the check engine light went away. I still have the same whine and burping issues with start up but no check engine warning light. I read it may be the alternator but, wanted to get some advice from fellow mustang enthusiasts before driving it to get the alternator reading. Id appreciate some advice.

Update- Check engine light returned, I drove the car around for a while and it seems to be running fine except the low whining noise is still present.

03 Gt Specs:
3:73 Gears
Eibach Lowering Springs
Xflows
Trick Flow Throttle Body
Cold Air Intake
Diablo Predator Tuned

autotech 1 · 11-01-2009, 08:38 PM

would like to know what the cure was have the same year & make identicle symtom

goodyear1984 · 11-16-2009, 10:39 PM

as funny as this sounds i went and looked on a different site for ur problem and check this out

P0340 Code - Cam Pos Sensor - Ford Mustang Forums

12-31-2008, 12:54 PM	#1
Steed Registered Member Join Date: Dec 2008 Posts: 1	2003 Mustang Gt throwing P0340 Code Hello Everyone, I am new to this forum. I have recently had an issue with my car throwing a P0340 code. I first noticed the issue when I started up my car and quickly died after starting twice! I got it running and returned home and noticed a funny smell and a low whine from the engine. I replaced the Camshaft Position Sensor and it continued to backfire or burp upon start up. Next I disconnected the battery terminals for 10 minutes and the check engine light went away. I still have the same whine and burping issues with start up but no check engine warning light. I read it may be the alternator but, wanted to get some advice from fellow mustang enthusiasts before driving it to get the alternator reading. Id appreciate some advice. Update- Check engine light returned, I drove the car around for a while and it seems to be running fine except the low whining noise is still present. 03 Gt Specs: 3:73 Gears Eibach Lowering Springs Xflows Trick Flow Throttle Body Cold Air Intake Diablo Predator Tuned Last edited by Steed; 12-31-2008 at 03:06 PM..

11-01-2009, 08:38 PM	#2
autotech 1 Registered Member Join Date: Nov 2009 Posts: 1	Re: 2003 Mustang Gt throwing P0340 Code would like to know what the cure was have the same year & make identicle symtom

11-16-2009, 10:39 PM	#3
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: 2003 Mustang Gt throwing P0340 Code as funny as this sounds i went and looked on a different site for ur problem and check this out P0340 Code - Cam Pos Sensor - Ford Mustang Forums __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

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