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2003 Mazda 6 check engine light on

Tiny
SABREFANS
  • MEMBER
  • 2003 MAZDA 6
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 139,000 MILES
Light comes on sometimes. Engine idles rough. Feels like it has a miss in engine sometimes when light is on.
Sunday, January 25th, 2015 AT 1:21 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure?
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Sunday, January 25th, 2015 AT 1:58 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,356 POSTS
Yep this is common when the engine is misfiring. I would start with a full tune up including ignition coils which go out in these cars. This guide can help

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

I would service the throttle body as well as part of the tune up. I have included how to do the job on your car in the images below.

https://www.2carpros.com/articles/throttle-actuator-service

recommended spark plugs are typically NGK Iridium IX LTR5IX-11 or Denso Iridium ITV20. These iridium plugs are known for durability, ensure the spark plug gap is set to 0.044 inches (1.1 mm).

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Monday, September 9th, 2024 AT 5:10 PM

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