As the title says I have a misfire problem, I have taken it to my local mechanic and with me watching, he hooked up his huge diagnostic system and watched the misfires in real time. Also, we checked several potential easy fixes, such as a coil pack, I had another coil pack, hooked it up, still misfiring on cylinder 2 (Kind of confirms its not the coil pack). Then we changed the boots on the coil pack swapped x for 2, checked again, misfire on cylinder 2 remains (confirms boot is good). Then we swapped out the fuel injector from x to 2 then did ran diagnostic again, misfire remains on 2. We did the same with the spark plugs too.
With the above information, the mechanic has pretty much confirmed its not an electrical problem. He is convinced I have sludge in the motor and it happens to be worse on cylinder 2, This makes perfect sense to me as it does not really misfire when driving, mainly when idling. Now, Since then, I have had such bad luck, I recently had the engine replaced, (this started happening then), this moron mechanic (not my local guy) connected the flywheel to the torque converter with an incorrect bolt, which caused the transmission to crack then leak in the flywheel area. (Right after I did a transmission fluid change too, I'M MAD!!), anyhow, I had a competent mechanic replace the transmission too, he discovered that issue caused by the previous mechanic and got me set up right, this is when he ran the diagnostic again, I still had the misfire a month later, but he said it had got better. Instead of 12 misfires for each cycle (100), I was getting much less, probably because I replaced one of my quarts of oil with marvel mystery oil.
I also get bad oxygen sensor error codes, my mechanic says all my check engine lights are related to this misfire, the oxygen sensors are basically, so covered in carbon due to the misfire that they cannot work right (I see this carbon on the end of the exhaust pipe too, it also smells rich sometimes too)
I believe that cleaning the sludge then cleaning the oxygen sensors should get my check engine light off.
Hopefully, the above information will help you guys answer this question..
Do you think continuing to clean the engine slowly would fix this issue, eventually?
Thanks in advanced!