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check engine light is on

  

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I have the Ford Ranger or my friend has a Ford Ranger and she's replaced the fuel pump and they've changed the map sensor and every time she brings it back home to check engine light comes on how comeWhy


2 Answers
1

please see our FAQ on the front page. click on "my check engine light is on"


1
Posted by: @dazzlinturbo

Why

Because the vehicle's computer is saying something is wrong.

There are stored codes that can shed some light on the problem if an OBD2 scan tool is employed,


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