July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC P1128: MAP Sensor Signal Lower Than Expected

Turn the ignition switch ON (II).
Check the MAP with the scan tool or the HDS.
Is 54.1 kPa (406 mmHg, 16.0 in.Hg), or 1.6 V, or more indicated?
1. YES - Intermittent failure, system is OK at this time.
2. NO - Replace the MAP sensor (see THROTTLE BODY DISASSEMBLY/REASSEMBLY ).