PO344 code on Jeep

RONNIE SKILES JR.

MEMBER
2006 JEEP WRANGLER
4WD
MANUAL
94,000 MILES

I have a 2006 jeep wrangler2.4 liter with a engine light on and a po344code. Already had cam sensor and crank sensor replaced. New spark plugs and wires. New wiring harness, timing checked and not ran for 8 hours and the outside temperture is timing belt replaced, new coil pack, new IAT sensor. When I first start my jeep after it has below 48 degrees, it will rough idle when r.P.M.'S are over 2000 and the engine light comes on. I then turn engine off and resart my jeep and then it runs fine and the engine light eventually goes out again. Can you please tell me what is wrong?

1 Reply

KHLOW2008

MECHANIC
41,815 POSTS

DTC P0344-CAMSHAFT POSITION SENSOR INTERMITTENT

When Monitored and Set Condition:
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT

When Monitored: While cranking the engine and engine running.

Set Condition: When the failure counter reaches 20. One Trip Fault.

POSSIBLE CAUSES

� GOOD TRIP EQUAL TO ZERO
� CMP WIRE HARNESS INSPECTION
� (F856) 5-VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND
� TONE WHEEL/PULSE RING INSPECTION
� CHECKING CKP SENSOR SIGNAL WITH THE DRBIII� LAB SCOPE
� CAMSHAFT POSITION SENSOR
� (K44) CMP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
� (K44) CMP SIGNAL CIRCUIT OPEN
� (K44) CMP SIGNAL CIRCUIT SHORTED TO GROUND
� (K44) CMP SIGNAL CIRCUIT SHORTED TO THE (F856) 5-VOLT SUPPLY CIRCUIT
� PCM

I would suggest checking the wire harness for loose or contaminations. Check the pulse ring. Ensure there are no contaminatios at the CMP sensor.