Rough engine, P0320, P0354, P0355,...
Thread Starter
|
Junior Member
Joined: Apr 2011
Posts: 1
Rough engine, P0320, P0354, P0355,...
My 2003 Expedition 5.4L with 120K is running very rough between 1K - 2.5K RPM and occasionally displays charging light and stalls when stopped.
Sometimes I get 5 DTC codes: P0320, P0354, P0355, P0356, P0358
- I've purchased 3 COPs, replaced 4,5 and 6 then swapped the rest around, but the P034x numbers stay the same.
- All old COPs read good Ohm values across the two connection pins and between B+ and plug spring.
- I've replace the 14305 wiring harness (per TSB 04149) and the CKP - Crankcase Position Sensor.
- I've cleaned the MAF with MAF cleaner
- I've replace some vacume lines on the top left rear of the engine and they are all sealed now.
Any ideas?
Kevin
Sometimes I get 5 DTC codes: P0320, P0354, P0355, P0356, P0358
- I've purchased 3 COPs, replaced 4,5 and 6 then swapped the rest around, but the P034x numbers stay the same.
- All old COPs read good Ohm values across the two connection pins and between B+ and plug spring.
- I've replace the 14305 wiring harness (per TSB 04149) and the CKP - Crankcase Position Sensor.
- I've cleaned the MAF with MAF cleaner
- I've replace some vacume lines on the top left rear of the engine and they are all sealed now.
Any ideas?
Kevin
Senior Member
Joined: Jan 2006
Posts: 1,234
From:
Are you giving the correct first code? In the top you have P0320, later in ther post you have it listed at P034x. They are 2 completely different items.
P0320 - Ignition Engine Speed Input Circuit Malfunction The ignition engine speed sensor input signal to PCM is continuously monitored. The test fails when the signal indicates that two successive erratic profile ignition pickup (PIP) pulses have occurred.
Possible causes
Loose wires/connectors.
Arcing secondary ignition components (coil, wires and plugs)
On board transmitter (2-way radio)
The DTC indicates that two successive erratic PIP pulses occurred.
P0340 - Camshaft Position (CMP) Sensor Circuit Malfunction (Bank 1) The test fails when the PCM can no longer detect the signal from the CMP sensor on Bank 1.
P0345 - Camshaft Position (CMP) Sensor Circuit Malfunction (Bank 2) The test fails when the PCM can no longer detect the signal from the CMP sensor on Bank 2.
Possible causes
CMP circuit short to GND
CMP circuit short to PWR
SIG RTN open (VR sensor)
CMP GND open (Hall effect sensor)
CMP misinstalled (Hall effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM
Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have intermittent impact on the CMP signal.
P0320 - Ignition Engine Speed Input Circuit Malfunction The ignition engine speed sensor input signal to PCM is continuously monitored. The test fails when the signal indicates that two successive erratic profile ignition pickup (PIP) pulses have occurred.
Possible causes
Loose wires/connectors.
Arcing secondary ignition components (coil, wires and plugs)
On board transmitter (2-way radio)
The DTC indicates that two successive erratic PIP pulses occurred.
P0340 - Camshaft Position (CMP) Sensor Circuit Malfunction (Bank 1) The test fails when the PCM can no longer detect the signal from the CMP sensor on Bank 1.
P0345 - Camshaft Position (CMP) Sensor Circuit Malfunction (Bank 2) The test fails when the PCM can no longer detect the signal from the CMP sensor on Bank 2.
Possible causes
CMP circuit short to GND
CMP circuit short to PWR
SIG RTN open (VR sensor)
CMP GND open (Hall effect sensor)
CMP misinstalled (Hall effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM
Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have intermittent impact on the CMP signal.
Last edited by way2old; Apr 23, 2011 at 07:42 PM.
Thread
Thread Starter
Forum
Replies
Last Post
