Hey guys,
I'm having similar issues with my Mazda Protege ES 2003 (Canadian)
My CEL blinks and then stays solid, the code shows P0300. Here are the symptoms.
I drive along the highway, and I keep a steady 3000 RPM. All of a sudden, I start losing engine power and cannot accelerate and my RPM keeps dipping. Once I idle at a traffic light or at a traffic jam, the car starts shaking as if it was about the stall and then kicks back and goes back to normal.
Here what I've done to my car already.
- Replaced EGR Valve (fixed my rough idle issue that's common on most proteges)
- Basic tune-up, changed all the wiring, spark plugs
Now, I'm browsed online and trying to get a feel of what most people did and what they had their mechanic do. What should I ask my mechanic to check next? When he took my car for a week, he couldn't get the problem to happen.
Online it says to try:
PCV Valve, check fuel injectors, fuel pressure test.
This seems to be a known issue with Protege's so any ideas on what I should do next?
)
