Top 10 OBD2 Scanners Review 2020
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The P0108 occurs when the PCM has detected that the voltage in the MAP sensor is more than 5 volts or generally more than commanded under the prevailing circumstance.
The P0107 trouble code is triggered when the PCM has detected that the voltage in the MAP sensor is less than .25 volts, which is too low to send a reliable signal.
When the ECM has determined that the pressure of fuel going to the fuel pump module is below the pressure that was commanded by the ECM, the P0087 is triggered.
The P0031 happens when the resistance of the heater circuit in bank 1 is too low to heat fuel until it achieves air to fuel ratio of 14:7. The problem is coming from the 1st sensor of bank 1. This code is usually triggered when resistance level is below 0.8A.
The P0030 code is triggered when bank 1, sensor 1 of the O2 sensor heater circuit is faulty. As such, the engine isn’t achieving closed loop and therefore the car has increased emissions.
When the camshaft timing for bank 2 is over-retarded, the P0022 trouble code is activated.
The P0021 trouble code means that when the camshaft timing for bank 2 is above and beyond the limit set by the ECM. This causes an over-advanced condition that occurs either during retarding or advancing of the camshaft timing.