Hello team,
Hope you're all doing good. As I'm not quite sure if this is the right place where I can ask you guys something, let me first apologize if I'm not doing it the correct way. Sorry for the weird English as well, not my mother language.
I'm a fresh owner of a 8th gen Honda Civic 1.8 S, 2006, hatchback (140k km) and I'm having the so-famous "random misfire detected" codes thrown constantly. Codes are P0300, P0301, P0302, P0303, P0304.
Here's what have been done so far:
1. Spark plugs - changed. Coils are okay.
2. EGR valve cleaned.
3. Flowmeter - cleaned with air sensor cleaner.
4. Fuel injector added - STP.
5. Valve ajustement has been made.
6. Replaced the whole chain with the tensioner.
7. ECU switched and tested from another car - issue persists.
The strange thing is that the "check-engine" led starts to flash only between 3000-3500 rpm and if I go quickly beyond this rev, all works just fine and the car is running smoothly. If for some reason I stay between 3000-3500 rpm for around half a min, the led pops-up and the cars loses power, then respectively - needs to be turned off/on - then all fine.
Changed the gasoline with high octane (100), same thing. All filters have been changed recently, battery is fine.
I looked up the forum here, but I wasn't able to find a resolution or anything close to my issue. Do you have any ideas what may be the reason for this?
Thank you in advance and have a good one!
Hope you're all doing good. As I'm not quite sure if this is the right place where I can ask you guys something, let me first apologize if I'm not doing it the correct way. Sorry for the weird English as well, not my mother language.
I'm a fresh owner of a 8th gen Honda Civic 1.8 S, 2006, hatchback (140k km) and I'm having the so-famous "random misfire detected" codes thrown constantly. Codes are P0300, P0301, P0302, P0303, P0304.
Here's what have been done so far:
1. Spark plugs - changed. Coils are okay.
2. EGR valve cleaned.
3. Flowmeter - cleaned with air sensor cleaner.
4. Fuel injector added - STP.
5. Valve ajustement has been made.
6. Replaced the whole chain with the tensioner.
7. ECU switched and tested from another car - issue persists.
The strange thing is that the "check-engine" led starts to flash only between 3000-3500 rpm and if I go quickly beyond this rev, all works just fine and the car is running smoothly. If for some reason I stay between 3000-3500 rpm for around half a min, the led pops-up and the cars loses power, then respectively - needs to be turned off/on - then all fine.
Changed the gasoline with high octane (100), same thing. All filters have been changed recently, battery is fine.
I looked up the forum here, but I wasn't able to find a resolution or anything close to my issue. Do you have any ideas what may be the reason for this?
Thank you in advance and have a good one!