How do you repeir a code 34?

Answer 1

Trouble Code 34 indicates that the Manifold Absolute Pressure (MAP) sensor is detecting unusually high vacuum in the manifold. Code 34 will get set when: Engine RPM less than 700. Manifold pressure reading less than 13 kPa. Conditions met for .22 second. OR Engine RPM greater than 700. Throttle angle over 20%. Manifold pressure less than 13 kPa. Conditions met for .22 second. Possible causes include: 1) Faulty MAP-to-ECM connection 2) Defective MAP sensor 3) Defective ECM The easiest way to test the MAP sensor is to disconnect the electrical connector at an idle. If the idle improves, the MAP is the problem.