Question about 2003 Mazda Mazda6

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I have a 03 mazda 6 with 125k miles. As I was driving-the car started to accelerate and then slow down. When I stopped the car put it into Nuetral the car started to rev up and down -- I continued to drive the car that day and the issue stopped. I do not know where to begin looking?

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  • Mazda Master
  • 16,166 Answers

This is a fuel, air or sensor issue. The first thing that you need to do is take it to an autoparts store like autozone or checker and have them plug into the computer and see what error codes are there. If there are any. If not then you need to change the fuel filters, check the fuel pressure and delivery volume and see if the air filter has let any debris into the intake sensors. You might want to see about cleaning the sensors with a spray cleaner like brake solvent.

Posted on Aug 01, 2010

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Posted on Jan 02, 2017

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