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The check-engine light is on in my 2007 Nissan Tiida.
The check-engine light on any modern, fuel-injected car is there to let you know there’s something amiss with how something within the driveline is working. However, precisely what that thing is could be one (or more) of about a thousand things. The absolute best advice is to take the car to a workshop and have it electronically scanned. The onboard computer (which is what triggers the check-engine light) should have recorded what was at fault and should then be able to tell the workshop’s computer where to start looking.
Until you have this scan performed, you won’t have a clue what the problem is, and the causes could be anything from a dud oxygen sensor, to a stretched timing chain, and a dead spark plug wire to a blocked fuel-injector.
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