BSouders80
Full Access Member
I'm having some issues with my MAF. Kind of a rough idle and it sounds a little different. 2014, 6.6L + SC on E85.
I've been driving the 6.6 for about 9 months without any issues.
First I had P1101 pop in Forscan. MAF sensor out of self test range. When I look at the MyCalibrator gauges for the MAF sensor data, it's reading values that change with air flow, etc.
I changed the MAF - No change. Still rough idle.
Today, I had the wrench icon on. Checked the codes with Forscan. Now I have a P0100 - Mass or Volume Air Flow Sensor 'A' Circuit.
Does anyone have any suggestions? On an F150 forum, one said to unhook the PCM cables where they plug into the firewall, then reseat. I can try that.
Found this in a post on FRF: P0100 -- Mass Airflow circuit malfunction. The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture. Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks. To make a point as to the cause and effect on vehicles, consider this scenario. A simple air leak forward of the number one oxygen sensor will add additional air to the mixture un-metered by the computer. The oxygen sensor signals a lean mixture due to the un-metered air. Immediately the computer enriches the mixture to prevent a lean mixture from causing damage due to detonation among other factors. The unnecessarily rich mixture begins to foul the plugs, contaminate the oil, heats up the converter and drops the fuel economy. These are only a few of the things that transpire under these circumstances. Diagnostic and Repair Procedures It's wise to go online and acquire the technical service bulletins (TSBs) associated with these codes and a description. Although all vehicles suffer from similar causes, some may have a service history of problems with a particular component associated with this code.
TIA. Brian
I've been driving the 6.6 for about 9 months without any issues.
First I had P1101 pop in Forscan. MAF sensor out of self test range. When I look at the MyCalibrator gauges for the MAF sensor data, it's reading values that change with air flow, etc.
I changed the MAF - No change. Still rough idle.
Today, I had the wrench icon on. Checked the codes with Forscan. Now I have a P0100 - Mass or Volume Air Flow Sensor 'A' Circuit.
Does anyone have any suggestions? On an F150 forum, one said to unhook the PCM cables where they plug into the firewall, then reseat. I can try that.
Found this in a post on FRF: P0100 -- Mass Airflow circuit malfunction. The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture. Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks. To make a point as to the cause and effect on vehicles, consider this scenario. A simple air leak forward of the number one oxygen sensor will add additional air to the mixture un-metered by the computer. The oxygen sensor signals a lean mixture due to the un-metered air. Immediately the computer enriches the mixture to prevent a lean mixture from causing damage due to detonation among other factors. The unnecessarily rich mixture begins to foul the plugs, contaminate the oil, heats up the converter and drops the fuel economy. These are only a few of the things that transpire under these circumstances. Diagnostic and Repair Procedures It's wise to go online and acquire the technical service bulletins (TSBs) associated with these codes and a description. Although all vehicles suffer from similar causes, some may have a service history of problems with a particular component associated with this code.
TIA. Brian
