2002 Jeep Liberty 3.7L 6 Cyl code P0253

Question

I changed all of my sensors, since three was bad I took the liberty to change all four, the check engine light is still coming on and it reads that the sensors are bad. is this a computer problem

Answer 1

Its possible but it depends on what is tested, testing for its proper ground, its proper power and its signal and when the CK ENG LT came on,

Answer 2

P0253 JEEP - Injection Pump Fuel Metering Control 'A' Low

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