...Possible Causes: Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications* Short to VPWR in the harness or HO2S Water in the harness connector Open VPWR ...
...airflow circuits and verifying data from both the mass airflow sensor and the EGR System Module (ESM) and possibly repairing circuits with high resistance and/or replacing the ESM. There is
...concerns. Manifold absolute pressure (MAP) sensor fault (Vehicles with an EGR system module [ESM]). Output shaft speed (OSS) sensor fault (Crown Victoria, Expedition, Explorer, F-150 4.6L and
...or backprobe the Brown/Light Green (BN/LG) wire of the Exhaust Gas Recirculation System Module (ESM). Voltage should indicate a reading of 0.5-1.2 volts. 2. If the voltage of the DPFE sensor is ...
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