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ok could not get the map sensor code to go away, i replaced the map sensor with a known good one and still the same. I checked the voltage at the map sensor at 5 volts and on the return at the ecu, varys depending on idle. Rpm raised up it would be lower, at idle a bit higher..topped out at about 2.5 volts. ....so sensor is good and wireing to the sensor from the ecu is good as well......As far as a vacume leak (intake manifold gasket) doesnt seem to be... with the vacume line disconected from the map sensor and pluged it holds about 15 lbs of vacume constently...also the idle kind of smooths out this way, although runs like crap....Also compresion is even through all cylinders .................................................. ...
With a good map sensor and wiring what would\could trigger a map sensor code? Is that based on the amount of vacume into the map sensor, and or based on voltage input output at the map sensor, or could it be a conflict between the map sensor readings and that of other faulty sensor?, if so what other sensor ? ...i will check the fitv and let you know on that.
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