i have an 88 f150 with a 300 and it used to rev up and down till it would stoll
i did everything you did and then some and got nothing
i change the map sensor and now its like bran new
A
manifold absolute pressure sensor (MAP) is one of the
sensors used in an
internal combustion engine's electronic control system. Engines that use a MAP sensor are typically
fuel injected. The manifold absolute pressure sensor provides instantaneous
manifold pressure information to the engine's
electronic control unit (ECU). This is necessary to calculate air density and determine the engine's air mass flow rate, which in turn is used to calculate the appropriate fuel flow.
