tsortor
New Member
- Joined
- October 14, 2012
- Messages
- 5
- Reaction score
- 0
- Year, Model & Trim Level
- 2004 Ford Explorer
Hey guys, I'm new to this site and am hoping I can get a definitive diagnosis before I go broke replacing parts. I bought our 2004 Explorer XLT with a 4.0 V6 for my wife about 5 months ago. It has been running great until last Friday when all of a sudden after about 30 minutes of driving, it just started idleing really rough. It seems to drive ok, but now with a little loss of power, but idles rough.
Here are the codes I've pulled from the car:
P0174 - System Too Lean (Bank2)
P0300 - Random Misfire Detected
P0301 - Cylinder 1 Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0303 - Cylinder 3 Misfire Detected
P0316 - Misfire Detected on Startup (First 1000 Revolutions)
Pending:
P0172 - System Too Rich (Bank 1)
P0174 - System Too Lean (Bank2)
P0300 - Random Misfire Detected
P0301 - Cylinder 1 Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0303 - Cylinder 3 Misfire Detected
P0316 - Misfire Detected on Startup (First 1000 Revolutions)
Ok, so here is what I have done so far. Replaced coil pack, wires, plugs, pcv valve and hose, and all 4 O2 sensors. These items did nothing and the vehicle is still misfiring and idleing rough. I've sprayed all vacuum lines and intake manifold connections with carburetor cleaner looking for leaks and haven't been able to find anything.
Could it be the injectors? Any help would be appreciated.
Here is the freeze frame data:
Parameter Description Results
DTC for which Freeze Frame was Stored - P0302
Fuel System 1 Status Open Loop - due to detected system fault
Fuel System 2 Status Not Supported
Calculated LOAD Value 25.49 %
Engine Coolant Temp 125.60 °F
Short Term Fuel Trim - Bank 1 0.00 %
Long Term Fuel Trim - Bank 1 3.13 %
Short Term Fuel Trim - Bank 2 0.00 %
Long Term Fuel Trim - Bank 2 25.00 %
Intake Manifold Absolute Pressure 13.03 inHg
Engine RPM 1,075.00 rpm
Vehicle Speed Sensor 0.00 mph
Ignition Timing Advance #1 Cylinder 24.00 °
Intake Air Temperature 82.40 °F
Air Flow Rate Mass Air Flow Sensor 1.10 lb/min
Absolute Throttle Position 16.86 %
Oxygen Sensor Output Voltage (B1-S1) 0.85 V
Short Term Fuel Trim (B1-S1) 0.00 %
Oxygen Sensor Output Voltage (B1-S2) 0.06 V
Short Term Fuel Trim (B1-S2) 99.22 %
Oxygen Sensor Output Voltage (B2-S1) 0.08 V
Short Term Fuel Trim (B2-S1) 0.00 %
Oxygen Sensor Output Voltage (B2-S2) 0.30 V
Short Term Fuel Trim (B2-S2) 99.22 %
Time Since Engine Start 10 sec
Here are the codes I've pulled from the car:
P0174 - System Too Lean (Bank2)
P0300 - Random Misfire Detected
P0301 - Cylinder 1 Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0303 - Cylinder 3 Misfire Detected
P0316 - Misfire Detected on Startup (First 1000 Revolutions)
Pending:
P0172 - System Too Rich (Bank 1)
P0174 - System Too Lean (Bank2)
P0300 - Random Misfire Detected
P0301 - Cylinder 1 Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0303 - Cylinder 3 Misfire Detected
P0316 - Misfire Detected on Startup (First 1000 Revolutions)
Ok, so here is what I have done so far. Replaced coil pack, wires, plugs, pcv valve and hose, and all 4 O2 sensors. These items did nothing and the vehicle is still misfiring and idleing rough. I've sprayed all vacuum lines and intake manifold connections with carburetor cleaner looking for leaks and haven't been able to find anything.
Could it be the injectors? Any help would be appreciated.
Here is the freeze frame data:
Parameter Description Results
DTC for which Freeze Frame was Stored - P0302
Fuel System 1 Status Open Loop - due to detected system fault
Fuel System 2 Status Not Supported
Calculated LOAD Value 25.49 %
Engine Coolant Temp 125.60 °F
Short Term Fuel Trim - Bank 1 0.00 %
Long Term Fuel Trim - Bank 1 3.13 %
Short Term Fuel Trim - Bank 2 0.00 %
Long Term Fuel Trim - Bank 2 25.00 %
Intake Manifold Absolute Pressure 13.03 inHg
Engine RPM 1,075.00 rpm
Vehicle Speed Sensor 0.00 mph
Ignition Timing Advance #1 Cylinder 24.00 °
Intake Air Temperature 82.40 °F
Air Flow Rate Mass Air Flow Sensor 1.10 lb/min
Absolute Throttle Position 16.86 %
Oxygen Sensor Output Voltage (B1-S1) 0.85 V
Short Term Fuel Trim (B1-S1) 0.00 %
Oxygen Sensor Output Voltage (B1-S2) 0.06 V
Short Term Fuel Trim (B1-S2) 99.22 %
Oxygen Sensor Output Voltage (B2-S1) 0.08 V
Short Term Fuel Trim (B2-S1) 0.00 %
Oxygen Sensor Output Voltage (B2-S2) 0.30 V
Short Term Fuel Trim (B2-S2) 99.22 %
Time Since Engine Start 10 sec