my expedition some time runs vary bad

[pcrum21]

ok I have a 2006 expedition with the 5.4l 3v. and it is throwing all kinds of codes. but the most one is system to lean banks 1 and 2. also random misfire. most of the time it runs like crap. but when I unhook the battery and the pcm resets it will run good until I touch the gas pedal. and another thing is when I am watching my code reader the stft bank one will be around -19 and stft bank 2 is around 22 what would make the fuel trims be so far a part? I'm new to this and am trying to explain it the best I can. any help woud greatly be appreciated . thanks

 

[Bedrck47]

What are the codes that it is throwing

 

[pcrum21]

one time it had 20. here they are,p0340,p0010,p0020,p0344,p0345,p0022,p0113,p0300,p0302,p0304,p0305,p0306,p0307,p0308,p0340,p0349. I have replaced the maf and cleaned the throttle body. and checked for air leaks. oil was replaced with 5w 20 with a bosch oil filter.

 

[Bedrck47]

http://www.google.com/url?sa=t&rct=...la9BKjKWiUG7vElGA&sig2=29iJCk718hEhY3lKS87IdA

https://www.google.com/url?sa=t&rct...cXzBWdeMESOtexuJQ&sig2=_JHuq5phPNBFtydpFL8Zfw

 

[Bedrck47]

Every time you disconnect the battery. The codes will clear and then the PCM must go thru the drive cycle. Give me some time and I will post some information about the codes.

How many miles on the expy?
When were the plugs last changed? coils changed? boots changed?
When was the fuel filter changed?

 

[Bedrck47]

P0010 - Intake Camshaft Position Actuator Circuit/Open (Bank 1)

Description: The powertrain control module (PCM) monitors the variable camshaft timing (VCT) circuit to the PCM for high and low voltage. If during testing the voltage exceeds or falls below a calibrated limit for a calibrated amount of time the test fails.
Possible Causes: Open or short in the VCT circuit
Open VPWR circuit
Open or short in the VCT solenoid valve

Diagnostic Aids: This DTC is a circuit check. Testing should include the harness and solenoid coil.

P0020 - Intake Camshaft Position Actuator Circuit/Open (Bank 2)

Description: See the description for DTC P0010.
Possible Causes: See the possible causes for DTC P0010.
Diagnostic Aids: See the diagnostic aids for DTC P0010.

P0022 - Intake Camshaft Position Timing - Over-Retarded (Bank 2)

Description: See the description for DTC P0012.
Possible Causes: See the possible causes for DTC P0012.
Diagnostic Aids: See the diagnostic aids for DTC P0012.

P0113 - Intake Air Temperature (IAT) Sensor 1 Circuit High

Description: Indicates the sensor signal is greater than the self-test maximum. The IAT sensor maximum is 4.6 volts or -50°C (-58°F).
Possible Causes: Open circuit in the harness
Sensor signal short to voltage
Damaged sensor
Improper harness connection

P0300 - Random Misfire Detected

Description: The random misfire DTC indicates multiple cylinders are misfiring or the powertrain control module (PCM) cannot identify which cylinder is misfiring.
Possible Causes: Camshaft position sensor (CMP)
Low fuel (less than 1/8 tank)
Stuck open EGR valve
Blocked EGR passages

Diagnostic Aids: One or more EGR passages may be blocked or partially blocked. If this is the case the misfire detection monitor indicates the EGR port to check for possible blockage


P030x - Cylinder x Misfire Detected

Description: NOTE: x represents cylinder number 1 through 9.
The misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. Misfire is defined as lack of combustion in a cylinder due to absence of spark, poor fuel metering, poor compression, or any other cause.
Possible Causes: Ignition system
Fuel injectors
Running out of fuel
EVAP canister purge valve
Fuel pressure
Evaporative emission system
EGR system
Base engine

P0340 - Camshaft Position Sensor A Circuit (Bank 1 or single sensor)
Description: The test fails when the powertrain control module (PCM) can no longer detect the signal from the camshaft position (CMP) sensor on bank 1.
Possible Causes: CMP circuit open
CMP circuit short to GND
CMP circuit short to voltage
SIG RTN open (VR sensor)
CMP GND open (Hall-effect sensor)
CMP circuit short to CMP2 circuit (if equipped)
CMP incorrectly installed (Hall-effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM

Diagnostic Aids: Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have an intermittent impact on the CMP signal.

P0344 - Camshaft Position Sensor A Circuit Intermittent (Bank 1 or single sensor)
Description: The test fails when the powertrain control module (PCM) detects an intermittent signal from the camshaft position (CMP) sensor.
Possible Causes: Intermittent open circuit
Intermittent short circuit
Damaged sensor shielding
Damaged sensor

Diagnostic Aids: Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have an intermittent impact on the CMP signal.

P0345 - Camshaft Position Sensor A Circuit (Bank 2)
Description: The test fails when the powertrain control module (PCM) can no longer detect the signal from the camshaft position (CMP) sensor on bank 2.
Possible Causes: See the possible causes for DTC P0340.
Diagnostic Aids: See the diagnostic aids for DTC P0340.

P0349 - Camshaft Position Sensor A Circuit Intermittent (Bank 2)
Description: See the description for DTC P0344.
Possible Causes: See the possible causes for DTC P0344.
Diagnostic Aids: See the diagnostic aids for DTC P0344.

 

[Bedrck47]

In reading these code it appears that you have some problems in the wiring, connectors, shorts or wires that may be burned.

I would suggest that you get a copy of the Ford Workshop Manual on DVD cost less that $20.00 or contact me by a PM for information on the Manual. Stay away from the Clymer or Haynes manuals They are not specific to your model or year The Ford Manual is a Factory Manual and has wiring diagrams etc that are specific to model and year

 

[pcrum21]

thanks, I was also thinking wiring. ive been looking. here are the codes I'm getting now p0340,p0345,p0349,p0022. I just started it up its ideling now and is running good. no codes. gotta go the the store I will let you know what it acts like when I get back. again thanks.

 

[Bedrck47]

https://www.obd-codes.com/forums/viewtopic.php?f=18&t=13476&sid=7d4abc4415d0ecdc323fb6a769f1aa7b

 

[pcrum21]

it has 130,000 on it. I don't know about the plugs,coils or fuel filter I just bought it. I'm gonna do a complete tune up I just don't want to waste $$ if the motor on parts I may not need. oh yeah for got to mention someone drilled holes in both cats. could that be the problem.

 

[Bedrck47]

Can't answer about the cats. But again looking at the codes it appears to be a lot related to electrical issues Check to make sure you have good clean connections and wiring is intact. I would at least change plugs and boots if you don't change the coils If you do change coils the new ones should come with the boots. Check on you tube for videos on changing plugs on the 3V engines.

I agree about wasting money and not just throwing parts into it. Do some troubleshooting first and again check the wiring