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Old 06-10-2007, 02:08 PM   #1
nightzx
Default camshaft position sensor problem

my car has been running really bad lately. at first it was just hard to start it. sometimes it would pop after i tried to start it and it wouldnt start for a few tries. then it started running really bad at idle. it idles at 500-600 rpms, and every once in a while the rpms will drop even lower and the car struggles to keep running. i hooked my xcal 2 up to it to see what codes it was throwing. i got p0340. the camshaft position sensor code. i replaced the sensor. code still comes up. i dont know what else to do. i cleaned out my MAF with some cleaner and i checked all my vaccuum lines. everything is good. my next step was to clean the IAC but that still wouldnt fix the problem with the code that its throwing. any help from anyone would be great. i cant figure this out
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2002 Yellow Mustang GT
K&N Cold Air Intake, BBK 70mm Throttle Body, FRPP 3.73 gears, SLP X-pipe(no cats on atm), MAC 2.5" catback, XCAL 2 tune.
Best time: 1/8th - 8.92 @ 79.92 2.1 60'

1974 Chevy Nova
Built 350 11.5 to 1 compression- 202 camelback heads, 511 Isky cam, P Jackson Gear Drive, Hooker Longtubes, 3.73 posi rear end.
Built Turbo 350 with 2500 stall .
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Old 06-10-2007, 02:38 PM   #2
spike_africa
Default

does it run ruff still or just the light you didnt say what happend?
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Old 06-10-2007, 02:56 PM   #3
nightzx
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what do u mean just the light? it still runs rough. but once i start driving or pretty much do anything to get the car out of idleing it runs fine. i can drive on the highway or even go WOT and you couldn't even tell something was wrong with it. only while its idleing or trying to start does it mess up. the service engine soon light came on recently too.
__________________
2001 Mustang Cobra
too many mods to list.....451hp 408tq at the wheels

SOLD
2002 Yellow Mustang GT
K&N Cold Air Intake, BBK 70mm Throttle Body, FRPP 3.73 gears, SLP X-pipe(no cats on atm), MAC 2.5" catback, XCAL 2 tune.
Best time: 1/8th - 8.92 @ 79.92 2.1 60'

1974 Chevy Nova
Built 350 11.5 to 1 compression- 202 camelback heads, 511 Isky cam, P Jackson Gear Drive, Hooker Longtubes, 3.73 posi rear end.
Built Turbo 350 with 2500 stall .
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Old 06-10-2007, 04:37 PM   #4
machnjo
Default

I had shredded the right bank timing chain tensioner arm during acceleration back in december. It caused the car to idle rough and misfire quite a bit. I ended up having other problems as well, so I wasn't getting any SES codes for it, but maybe that would be something to look into.

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Old 06-10-2007, 05:05 PM   #5
3V2000GT
Default

1 am 100% sure its the altenator, you have a bad alternator, its not giving enough charge. also the aternator wires run with the camshaft position sensor. i replaced my alternator, and it fixed it, starts up fine and idles fine.
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Old 06-11-2007, 10:42 AM   #6
nightzx
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you know what, that sounds like it could be it. when the car is slowing down i get a whine coming from the engine. i thought it was just the belt making noise and it just seemed louder then normal cause i was paying more attention to it. but my dad said it was a bearing going bad in the alternator. ill try that one out and see how it works. thanks guys
__________________
2001 Mustang Cobra
too many mods to list.....451hp 408tq at the wheels

SOLD
2002 Yellow Mustang GT
K&N Cold Air Intake, BBK 70mm Throttle Body, FRPP 3.73 gears, SLP X-pipe(no cats on atm), MAC 2.5" catback, XCAL 2 tune.
Best time: 1/8th - 8.92 @ 79.92 2.1 60'

1974 Chevy Nova
Built 350 11.5 to 1 compression- 202 camelback heads, 511 Isky cam, P Jackson Gear Drive, Hooker Longtubes, 3.73 posi rear end.
Built Turbo 350 with 2500 stall .
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Old 07-02-2007, 01:29 PM   #7
str8wick3d
Default

your idle problem isnt your cam sensor, but the alternator WILL fix this problem, i had the same code thrown, and same symtoms as you and replaced mine and its perfect now! starts up everytime.
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Old 07-02-2007, 01:29 PM
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99, cam, camshaft, cobra, code, engine, gt, mustang, position, problem, sensor, stall, thowing, v6, whining

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