Getting code P0302- Misfire cyl 2. Cleaned and tested injectors, tested wiring, ignition coils are good. Still experiencing rough idle, the check engine light came back on and started flashing when over 2k rpms, smell of burnt coolant under hood, a lot of heat under hood but not running to the point of overheating.
Once it all cooled down I checked the coolant levels again and are very low in radiator and reservoir is practically empty. The oil is watery like, increased in level and smells of gas, however still looks clean not milky or dark.
There isn't any obvious fluid dripping out onto the ground. Also, I know the timing chain is going bad and am wondering if this could be the issue. I had a clacking sound diagnosed by a mechanic early 2020 whom told me I had a few years left in it and didn't inform me of it causing any major malfunctions. Since the timing chain diagnosis I've only put around 2k miles on it (haven't driven it much).
I'll try to get under the hood and look at the that spark plug asap. I am wondering if there is a small leak from head gasket.
Please help if you can!
You are burning coolant. The head gasket is likely blown,
Thank you.... 🙁
Can you tell me what could have caused this? Is it likely that the water, coolant has caused irreversible internal damage (I haven't driven it since the code was triggered 1.5 months)? Should I drain out the oil pronto?
I've never overheated it, at least not based on the temperature gauge as long as i've owned it (7 years)...
Yes, thanks. I got a rebuilt head and a top end gasket kit. I replaced the factory head bolts (you cannot re-use the old ones) with ARP studs which are torqued to 85 ft lbs instead of the factory bolts which are torqued to a pitiful 55 ft lbs. It's all good now with my 41 year old Toyota 22R engine. Good luck!
Okay, thank you. Did you find the origin of the overheating in the process of your rebuild?
Lots of things cause this, bad thermostat, water pump, etc. My head gasket blew as soon as I started it up on a cold morning. No reason I could find, but the exhaust looked like a mosquito abatement truck and the idle was horrible. I pulled the spark plugs and two of them were wet with coolant. Oh well, rebuilt head and new gaskets. That's life. Mine never showed any signs of overheating either.
Oh wow! Indeed it is part of life gotta roll with the blows. In this case, literally.
is your car running okay now?