P0108 = MAP sensor circuit high voltage
The MAP sensor communicates the barometric pressure inside the intake manifold to the ecm.
This code can indicate either a fault in the MAP (manifold absolute
pressure) sensor, or a possible vacuum leak, either from a hose or the
intake gasket.
I would NOT drive your car until this is fixed, especially if its
running bad. Erroneous information from the sensor can cause bad
mileage, misfires, rich or lean running, which can cause catalytic
converter or valve damage if left untreated.
they are easy to replace, a new one should run less than $125, and they are fairly easy to find used in the local junkyard.
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