CEL P0304 Intermittent Camshaft Sensor Error - JeepForum.com

 
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post #1 of 12 Old 02-17-2017, 08:06 AM Thread Starter
Dooshene
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CEL P0304 Intermittent Camshaft Sensor Error

Hello, for the past couple of months i have been dealing with the Dreaded P0344 CEL

This error will generate when starting my Jeep in the Morning when the Temperature is below 30 Degrees Fahrenheit

Looking through past forum threads, i have been attempting to troubleshoot, and have gotten closer but the error still appears.

Items that have been replaced: (Big Items are all Mopar/OEM)

New Battery
New Sparkplugs (Stock gap recommendations)
New Coil Pack
New Camshaft sensor
New Crankshaft Sensor
New O2 sensors (All 4 were replaced in correct order)
New Starter
New Fuel Pump

Fuel Pump was the most recent install
There is no hesitation when starting that is noticable, there was some prior to the fuel pump, but thats been remedied.

ECU was reset after every new install, so it could relearn based on the updated parts.

Kinda stuck at this point as far as what to try next.

This is not a emergency, just a annoyance as this will only occur once it goes below 30 degrees, any higher it does not occur.

Weird Symptom that i noticed.

After every 5 starts over the course of the day, the light goes out by itself: (I'll break it out below)

1 - Going to the Gym @ 4:30 am
2 - Coming home from the gym
3 - Going to work
4 - Going to Lunch
5 - Coming back from lunch (The Light does not generate when starting)

Any help/guidance would be appreciated.
Hopefully i only have another month of cold weather


Last edited by Dooshene; 02-17-2017 at 11:41 AM. Reason: Typed wrong CEL: Should be P0344
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post #2 of 12 Old 02-17-2017, 11:10 AM
Rubi4MyMrs
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P0304 is cylinder 4 misfire. Isn't it P0344?


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post #3 of 12 Old 02-17-2017, 11:41 AM Thread Starter
Dooshene
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You are correct, typo on my Part
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post #4 of 12 Old 02-17-2017, 12:20 PM
Rubi4MyMrs
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You are not alone. Search that code & see.
Any chance you recently replaced the OPDA with a Dorman or Crown? If yes, hopefully you have the old, original sensor. If so, put it in the new OPDA & see what happens.
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post #5 of 12 Old 02-17-2017, 01:08 PM Thread Starter
Dooshene
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I only replaced the sensor, the OPDA itself is still stock. That might be my next replacement.

The Sensor i bought was the mopar one from the dealer, i had read bad reviews about Dorman and Crown, so i got mopar for all my sensors.
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post #6 of 12 Old 02-17-2017, 01:15 PM
Speed911
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I've been dealing with mine for years with no luck. Good luck, you're going to need it

Quote:
Originally Posted by Rubi4MyMrs View Post
You are not alone. Search that code & see.
Any chance you recently replaced the OPDA with a Dorman or Crown? If yes, hopefully you have the old, original sensor. If so, put it in the new OPDA & see what happens.
****, I wish I had read that before. This is my first time seeing this suggestion. Mine is long gone
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post #7 of 12 Old 02-17-2017, 01:35 PM Thread Starter
Dooshene
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Going to Order a New OPDA as that is the only Part i haven't replaced. And the one in their still looks stock.

In regards to the Sensor, i replaced it with a Mopar one when i originally started testing, but then a light went off in my head and realized that my family's mechanic replace the sensor recently and come to find out he used a ****ty autozone brand one.

So i just ran outside while at work and swapped them, realizing he put the old one in a box in the rear area.

Hopefully by putting the good one back in, this will resolve. If not, i will replace the OPDA and continue to use the Mopar CPS.

Should i go with the Crown OPDA or is there another brand that people like to use.
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post #8 of 12 Old 02-17-2017, 02:17 PM
Speed911
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I went wth Crown and new oem sensor. Dorman also makes a replacement. Not sure what the differences are or what the consencous is on preference over one or the other.

-Dane
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post #9 of 12 Old 03-13-2017, 07:59 AM Thread Starter
Dooshene
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Update

Crown OPDA and a New Original Camshaft sensor has resolved my issue.

Installed and cleared the code. Jeep fires right up no matter how cold it is.

I was able to find a original Cam sensor from a vendor.

The one is used is:
Jeep
P#: CAM103-OE
Vendor: AIP Electronics
$20.00

They have their own site, and a vendor page on Amazon. Free shipping, took only a few days to arrive

After trying Mopar and other brands, this was the only one that worked, and i noticed a big difference.
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post #10 of 12 Old 03-15-2017, 04:58 PM
FireMedic82
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Quote:
Originally Posted by Dooshene View Post
Crown OPDA and a New Original Camshaft sensor has resolved my issue.

Installed and cleared the code. Jeep fires right up no matter how cold it is.

I was able to find a original Cam sensor from a vendor.

The one is used is:
Jeep
P#: CAM103-OE
Vendor: AIP Electronics
$20.00

They have their own site, and a vendor page on Amazon. Free shipping, took only a few days to arrive

After trying Mopar and other brands, this was the only one that worked, and i noticed a big difference.

Cool! Thanks for the info. I'm among the P0344 folks. So far, I'm on my second replacement. This one being a Dorman, and I haven't had any problems, YET...knock on wood. Too soon to know for sure. I've ordered the one from API to keep on backup.

Throw the photoshoppers a bone and post your executed mods, we would like to see the after pics. Copy and paste the url. http://www.jeepforum.com/forum/f59/executed-photoshop-mods-1417032/
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post #11 of 12 Old 03-21-2017, 12:42 PM
Speed911
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Quote:
Originally Posted by Dooshene View Post
Crown OPDA and a New Original Camshaft sensor has resolved my issue.

Installed and cleared the code. Jeep fires right up no matter how cold it is.

I was able to find a original Cam sensor from a vendor.

The one is used is:
Jeep
P#: CAM103-OE
Vendor: AIP Electronics
$20.00

They have their own site, and a vendor page on Amazon. Free shipping, took only a few days to arrive

After trying Mopar and other brands, this was the only one that worked, and i noticed a big difference.
Just ordered. I'll come back and let you all know what happens with mine and the crown opda.

-Dane
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post #12 of 12 Old 03-24-2017, 01:47 PM
Speed911
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Nevermind, they're out of stock for at least 4-6 weeks. I'll be trying the gap method.

-Dane
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