The manifold absolute pressure sensor isn't working properly. However, the engine should start. It may run rough, but should run,
As far as the problem, either the sensor itself is bad, there is a broken wire, the connector is loose or corroded and not making a good connection, of the ECM could be bad.
This sensor is responsible for supplying manifold pressure to the ECM. Based on the signal it supplies, the computer adjusts air / fuel mixtures for optimum performance.
Tell me, have you checked to make sure the fuel pressure is within spec? Will it start if you use starting fluid?
Friday, October 31st, 2014 AT 5:38 PM