Here is the instruction show you guide on how to repair International MaxxForce 7 SPN 51 FMI 4 2010 ETP signal out of range low.
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The Engine Throttle Valve (ETV) regulates how much air enters the engine.The valve opens and closes to allow for more or less air intake as engine conditions require.
Probable causes:
1) Engine Throttle Position (ETP) signal circuit OPEN or short to GND
2) Failed ETP sensor
3) VREF circuit OPEN
