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The oxygen sensor is in the exhaust. It senses unburned oxygen to tell the computer if combustion is complete. The mass airflow sensor is in front of the intake. It measures the volume of incoming air to supply the right amount of fuel
There are two O2 sensors in the exhaust system (4cyl). One is the a/f sensor the second is the downstream or heated sensor. The first measures air/fuel metering; the second measures the efficiency of the catalytic converter. The MAF sensor measures the Mass Air Flow, and yes it is at the front of the intake between the engine air filter and the throttle plate.
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What does code mean p1131 Lincoln navigator 1999?
It means the bank 1 oxygen sensor is not switching like it should. Sometimes this means the sensor is bad, sometimes it means the MAF sensor is dirty. If the oxygen sensor has a lot of miles on it (more than 100,000) it's probably worn out.
Where is the MAF sensor on a 96 Dodge Neon?
The Dodge Neon does not have a MAF (Mass Air Flow) Sensor. It does, however, have a MAP (Mass Air Pressure) sensor located on the intake manifold between the two left runners.
Camaro 1986 v8 TPI cranks but wont start spark is ok but no fuel pump is not started by the ECU how to check reley?
I get no fuel to the injectors don't hear the pump prime and if I connect power directly to the pump and get pressure to the fuel rails, no injectors are opening when I crank,,, I am getting sparks, how can I check if it is the ECU broken or the big fuel relay at the firewall?,, or is there some other problems, this engine was rebuilt by previous owner and he put the electiric in a mess, put wrong firing order(fixed that), put on new headers which was wrong and it has no oxygen sensor, (will it not run if the oxygen sensor is not hooked up? ) I will put original manifolds on and oxygen sensor soon... can bad maf sensor ruin the ECU...? previous owner told me he thougth the maf sensor was bad.... Help me get this Iroc-Z running again... Thanks,
Where is iat sensor for a 2007 mustang gt?
The IAT sensor (Intake Air Temperature) is an integral part of the Mass Air Flow sensor.If the IAT sensor must be replaced,you must replace the MAF sensor
Where is the map sensor located on a 350z?
Most modern day EFI vehicles such as the 350z are equipped with either a MAF or MAP sensor. The 350z has a MAF (mass air flow) sensor. It is located on the intake pipe between your air- box and throttle body. Most manufacturers today use MAF sensors over MAP's because they are more efficient. You can install a MAP sensor, but would have to run a piggy back ecu such as AEM or UTEC. This is usually for high hp forced induction builds.
