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P0231

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P0231 OBD-II Trouble Code: Fuel Pump Secondary Circuit Low
P0230 P0230 code definition Fuel Pump Primary Circuit Malfunction What the P0230 code means P0230 is a generic OBD-II code which indicates that the fuel pump primary circuit has a malfunction of the vehicle power to the fuel pump when...

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P0231 code coming on - reduced RPM and trembling with the AC on

Diagnostic Trouble Code P0231 (https://www.yourmechanic.com/article/p0231-obd-ii-trouble-code-fuel-pump-secondary-circuit-low-by-jay-safford) relates to a problem with the wiring in the fuel pump circuit, although it is also possible to have a faulty fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) that draws too much current and creates a voltage drop in...

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