Codes P2187 and P0300

Tiny
KARLAE84
  • MEMBER
  • 2008 MAZDA 3
  • 2.3L
  • 4 CYL
  • 135,000 MILES
Hi I already replaced spark plugs and cleaned the mass air flow sensor.
The engine starts shaking in the mornings when the engine is cold and the idle RPM moves up less than half way. After 6-7 minutes of driving the car drives fine. There is a noise coming out of the muffler. What could it be?


Thanks
Tuesday, November 19th, 2019 AT 7:29 AM

1 Reply

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

In the diagrams down below I have included the diagnostic troubleshooting guide for your vehicle for Direct Trouble Code[DTC] P2187. It will require the use of a code reader with the ability to read freeze frame data. Please go through this guide and get back to us with how everything turns out.

Thanks,
Alex
2CarPros
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Tuesday, November 19th, 2019 AT 8:00 AM

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