P0107 2014 Prius V

-p0107-obd-ii-trouble-code-manifold-air-pressure-map-barometric-pressure-sensor-circuit-low-voltage-input-problem-by-john-nelson

 

The P0107 code means that the electrical signal reaching the ECM from the MAP sensor went below 0.5 volts for at least 0.5 seconds.

Because the code returns immediately when you clear it, this does not sound like some intermittent, bouncing-wire issue, it sounds like a hard electrical fault that should be fairly straightforward to trace.

The troubleshooting section for P0107 in the repair manual is eight pages. When you say "I have checked everything out", that doesn't really give us enough information to help you with. It would be better if you could take us through the sequence of troubleshooting steps as you've done them, and the results or measurements you got at each step. Then it's possible we could spot a clue that wasn't obvious at first look.

Changing the intake or EGR doesn't figure into the P0107 troubleshooting steps at all, and changing the sensor is only something you might do depending on the outcome of step 2. So following the troubleshooting steps can often help you avoid spending time or money doing things that won't contribute to finding the problem.

 

Do you have a multimeter? Do you have any experience using one?

 

Were those measurements made at the MAP sensor wiring connector, unplugged from the sensor, as in step 2 of the troubleshooting procedure?

If so, the 0.5 indicates a problem; without the sensor to pull it down, that should normally be 4 to 5 volts. So, in that case, you would suspect a wiring issue somewhere, and proceed to step 3 to try to narrow it down.

 

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vermin?

 

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