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Reasons your check engine light comes on and how to interpret it

When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or emissions system needs attention. I see it as an early warning system that ...
Motor Trend

Truck Trend Garage: 2000 Nissan Frontier P0300 and P0400 Codes

Question:I've already done a lot of work to a 2000 3.3-liter Nissan Frontier Crew Cab. It runs bad and has two codes, P0300 and P0400. I spoke to a mechanic who thought I should change the ...
The Globe and Mail

Why does the check engine light go on?

My Honda Civic's check engine light (MIL) keeps alerting me to P0300 Random Misfire codes. I have tried multiple times to repair it but the light keeps coming on. Understanding how your car's computer ...