MAF....Mass Air Flow....and MAP....Manifold Absolute Pressure
P1133 = HO2 sensor 1 insufficient switching. Possible causes, An exhaust leak close to the O2 sensor, Silicone gasket material contaminated O2 sensor, Silicone in the fuel, Leaded fuel added to the fuel tank, Damaged wiring, Engine oil consumption, Engine coolant consumption, Faulty O2 sensor.
no it should increase fuel consumption as the oxygen sensor should compensating by adjusting the engine to run rich.
no. a bad o2 sensor will cause more fuel consumption, check engine light, etc it has nothing to do with shifting
engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty.
Probably a leaky FPR diaphragm or bad MAP sensor reading. If bad FPR diaphragm replace the fuel pressure regulator. This will also fix the misfiring, excessive fuel consumption, catalytic converter burning up, and rapid engine wear. If MAP sensor, replace sensor and/or hose to sensor. May also fix: check engine light on, hesitation on acceleration.
By measuring the amount of oxygen in the exhaust, the engine computer controls the amount and timing of fuel injected into the engine to maximise power and economy while minimizing emissions.By measuring the amount of oxygen in the exhaust, the engine computer controls the amount and timing of fuel injected into the engine to maximise power and economy while minimizing emissions.
The engine temp sensor is on the front of the engine, next to the thermostat housing.The engine temp sensor is on the front of the engine, next to the thermostat housing.
The engine coolant temperature sensor is usually on the front of the engine. The coolant temperature sensor will be in the vicinity of the thermostat housing.
Several problems can cause high fuel consumption. An engine that needs a tune up, a slipping transmission or a problem with a sensor giving bad information to the computer can all cause low fuel economy.
There are dozens of sensor that have to do with engine management and ignition all over the engine.There are dozens of sensor that have to do with engine management and ignition all over the engine.
If the crankshaft sensor is dead the engine will not start
The sensor is a hall effect sensor. Measuring resistance will not indicate a "pass/fail". You must test voltage of the sensor while cranking engine. You should see voltage change from 0.0v to 5.0v or see 2.5v on meters that have an averaging function.