One of the first symptoms of a problem with the fuel pump is a loud whining sound. An old or worn fuel pump may produce a noticeably loud whine or howl while running. Most fuel pumps will produce a quiet hum during their normal operation, however, an excessively loud whine coming from the fuel tank is usually a sign of a problem.P0231 Meaning The Engine Control Module provides ignition positive voltage to the coil side of the fuel pump relay.When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump.
Electric Fuel Pump Long Description: Fuel Pump - Electric In Tank Part Type: Electric Fuel Pump Category: Air And Fuel Delivery Subcategory: Fuel Pumps And Related Components Sales Rank: Technical Details Condition: New hitachi fuel lift pump and primer handle (oem is 8973572650 is 1157502090) ... hitachi ex 120 - 5 isuzu 4bg1-tcg fuel filter housing / head (oem is 8971798550)
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