Codes P2187 and P0300

2008 MAZDA 3

135,000 MILES • 2.3L • 4 CYL

KARLAE84

MEMBER
1 POST
FOLLOW

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

Nov 19, 2019 at 7:29 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

SCGRANTURISMO

AUTOMOTIVE REPAIR CONTRIBUTOR
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

Images (Click to enlarge)

Nov 19, 2019 at 8:00 AM